db.rs

   1mod access_token;
   2mod contact;
   3mod language_server;
   4mod project;
   5mod project_collaborator;
   6mod room;
   7mod room_participant;
   8mod server;
   9mod signup;
  10#[cfg(test)]
  11mod tests;
  12mod user;
  13mod worktree;
  14mod worktree_diagnostic_summary;
  15mod worktree_entry;
  16
  17use crate::{Error, Result};
  18use anyhow::anyhow;
  19use collections::{BTreeMap, HashMap, HashSet};
  20pub use contact::Contact;
  21use dashmap::DashMap;
  22use futures::StreamExt;
  23use hyper::StatusCode;
  24use rpc::{proto, ConnectionId};
  25use sea_orm::Condition;
  26pub use sea_orm::ConnectOptions;
  27use sea_orm::{
  28    entity::prelude::*, ActiveValue, ConnectionTrait, DatabaseConnection, DatabaseTransaction,
  29    DbErr, FromQueryResult, IntoActiveModel, IsolationLevel, JoinType, QueryOrder, QuerySelect,
  30    Statement, TransactionTrait,
  31};
  32use sea_query::{Alias, Expr, OnConflict, Query};
  33use serde::{Deserialize, Serialize};
  34pub use signup::{Invite, NewSignup, WaitlistSummary};
  35use sqlx::migrate::{Migrate, Migration, MigrationSource};
  36use sqlx::Connection;
  37use std::ops::{Deref, DerefMut};
  38use std::path::Path;
  39use std::time::Duration;
  40use std::{future::Future, marker::PhantomData, rc::Rc, sync::Arc};
  41use tokio::sync::{Mutex, OwnedMutexGuard};
  42pub use user::Model as User;
  43
  44pub struct Database {
  45    options: ConnectOptions,
  46    pool: DatabaseConnection,
  47    rooms: DashMap<RoomId, Arc<Mutex<()>>>,
  48    #[cfg(test)]
  49    background: Option<std::sync::Arc<gpui::executor::Background>>,
  50    #[cfg(test)]
  51    runtime: Option<tokio::runtime::Runtime>,
  52}
  53
  54impl Database {
  55    pub async fn new(options: ConnectOptions) -> Result<Self> {
  56        Ok(Self {
  57            options: options.clone(),
  58            pool: sea_orm::Database::connect(options).await?,
  59            rooms: DashMap::with_capacity(16384),
  60            #[cfg(test)]
  61            background: None,
  62            #[cfg(test)]
  63            runtime: None,
  64        })
  65    }
  66
  67    #[cfg(test)]
  68    pub fn reset(&self) {
  69        self.rooms.clear();
  70    }
  71
  72    pub async fn migrate(
  73        &self,
  74        migrations_path: &Path,
  75        ignore_checksum_mismatch: bool,
  76    ) -> anyhow::Result<Vec<(Migration, Duration)>> {
  77        let migrations = MigrationSource::resolve(migrations_path)
  78            .await
  79            .map_err(|err| anyhow!("failed to load migrations: {err:?}"))?;
  80
  81        let mut connection = sqlx::AnyConnection::connect(self.options.get_url()).await?;
  82
  83        connection.ensure_migrations_table().await?;
  84        let applied_migrations: HashMap<_, _> = connection
  85            .list_applied_migrations()
  86            .await?
  87            .into_iter()
  88            .map(|m| (m.version, m))
  89            .collect();
  90
  91        let mut new_migrations = Vec::new();
  92        for migration in migrations {
  93            match applied_migrations.get(&migration.version) {
  94                Some(applied_migration) => {
  95                    if migration.checksum != applied_migration.checksum && !ignore_checksum_mismatch
  96                    {
  97                        Err(anyhow!(
  98                            "checksum mismatch for applied migration {}",
  99                            migration.description
 100                        ))?;
 101                    }
 102                }
 103                None => {
 104                    let elapsed = connection.apply(&migration).await?;
 105                    new_migrations.push((migration, elapsed));
 106                }
 107            }
 108        }
 109
 110        Ok(new_migrations)
 111    }
 112
 113    pub async fn create_server(&self, environment: &str) -> Result<ServerId> {
 114        self.transaction(|tx| async move {
 115            let server = server::ActiveModel {
 116                environment: ActiveValue::set(environment.into()),
 117                ..Default::default()
 118            }
 119            .insert(&*tx)
 120            .await?;
 121            Ok(server.id)
 122        })
 123        .await
 124    }
 125
 126    pub async fn delete_stale_projects(
 127        &self,
 128        environment: &str,
 129        new_server_id: ServerId,
 130    ) -> Result<()> {
 131        self.transaction(|tx| async move {
 132            let stale_server_epochs = self
 133                .stale_server_ids(environment, new_server_id, &tx)
 134                .await?;
 135            project_collaborator::Entity::delete_many()
 136                .filter(
 137                    project_collaborator::Column::ConnectionServerId
 138                        .is_in(stale_server_epochs.iter().copied()),
 139                )
 140                .exec(&*tx)
 141                .await?;
 142            project::Entity::delete_many()
 143                .filter(
 144                    project::Column::HostConnectionServerId
 145                        .is_in(stale_server_epochs.iter().copied()),
 146                )
 147                .exec(&*tx)
 148                .await?;
 149            Ok(())
 150        })
 151        .await
 152    }
 153
 154    pub async fn stale_room_ids(
 155        &self,
 156        environment: &str,
 157        new_server_id: ServerId,
 158    ) -> Result<Vec<RoomId>> {
 159        self.transaction(|tx| async move {
 160            #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 161            enum QueryAs {
 162                RoomId,
 163            }
 164
 165            let stale_server_epochs = self
 166                .stale_server_ids(environment, new_server_id, &tx)
 167                .await?;
 168            Ok(room_participant::Entity::find()
 169                .select_only()
 170                .column(room_participant::Column::RoomId)
 171                .distinct()
 172                .filter(
 173                    room_participant::Column::AnsweringConnectionServerId
 174                        .is_in(stale_server_epochs),
 175                )
 176                .into_values::<_, QueryAs>()
 177                .all(&*tx)
 178                .await?)
 179        })
 180        .await
 181    }
 182
 183    pub async fn refresh_room(
 184        &self,
 185        room_id: RoomId,
 186        new_server_id: ServerId,
 187    ) -> Result<RoomGuard<RefreshedRoom>> {
 188        self.room_transaction(|tx| async move {
 189            let stale_participant_filter = Condition::all()
 190                .add(room_participant::Column::RoomId.eq(room_id))
 191                .add(room_participant::Column::AnsweringConnectionId.is_not_null())
 192                .add(room_participant::Column::AnsweringConnectionServerId.ne(new_server_id));
 193
 194            let stale_participant_user_ids = room_participant::Entity::find()
 195                .filter(stale_participant_filter.clone())
 196                .all(&*tx)
 197                .await?
 198                .into_iter()
 199                .map(|participant| participant.user_id)
 200                .collect::<Vec<_>>();
 201
 202            // Delete participants who failed to reconnect.
 203            room_participant::Entity::delete_many()
 204                .filter(stale_participant_filter)
 205                .exec(&*tx)
 206                .await?;
 207
 208            let room = self.get_room(room_id, &tx).await?;
 209            let mut canceled_calls_to_user_ids = Vec::new();
 210            // Delete the room if it becomes empty and cancel pending calls.
 211            if room.participants.is_empty() {
 212                canceled_calls_to_user_ids.extend(
 213                    room.pending_participants
 214                        .iter()
 215                        .map(|pending_participant| UserId::from_proto(pending_participant.user_id)),
 216                );
 217                room_participant::Entity::delete_many()
 218                    .filter(room_participant::Column::RoomId.eq(room_id))
 219                    .exec(&*tx)
 220                    .await?;
 221                room::Entity::delete_by_id(room_id).exec(&*tx).await?;
 222            }
 223
 224            Ok((
 225                room_id,
 226                RefreshedRoom {
 227                    room,
 228                    stale_participant_user_ids,
 229                    canceled_calls_to_user_ids,
 230                },
 231            ))
 232        })
 233        .await
 234    }
 235
 236    pub async fn delete_stale_servers(
 237        &self,
 238        new_server_id: ServerId,
 239        environment: &str,
 240    ) -> Result<()> {
 241        self.transaction(|tx| async move {
 242            server::Entity::delete_many()
 243                .filter(
 244                    Condition::all()
 245                        .add(server::Column::Environment.eq(environment))
 246                        .add(server::Column::Id.ne(new_server_id)),
 247                )
 248                .exec(&*tx)
 249                .await?;
 250            Ok(())
 251        })
 252        .await
 253    }
 254
 255    async fn stale_server_ids(
 256        &self,
 257        environment: &str,
 258        new_server_id: ServerId,
 259        tx: &DatabaseTransaction,
 260    ) -> Result<Vec<ServerId>> {
 261        let stale_servers = server::Entity::find()
 262            .filter(
 263                Condition::all()
 264                    .add(server::Column::Environment.eq(environment))
 265                    .add(server::Column::Id.ne(new_server_id)),
 266            )
 267            .all(&*tx)
 268            .await?;
 269        Ok(stale_servers.into_iter().map(|server| server.id).collect())
 270    }
 271
 272    // users
 273
 274    pub async fn create_user(
 275        &self,
 276        email_address: &str,
 277        admin: bool,
 278        params: NewUserParams,
 279    ) -> Result<NewUserResult> {
 280        self.transaction(|tx| async {
 281            let tx = tx;
 282            let user = user::Entity::insert(user::ActiveModel {
 283                email_address: ActiveValue::set(Some(email_address.into())),
 284                github_login: ActiveValue::set(params.github_login.clone()),
 285                github_user_id: ActiveValue::set(Some(params.github_user_id)),
 286                admin: ActiveValue::set(admin),
 287                metrics_id: ActiveValue::set(Uuid::new_v4()),
 288                ..Default::default()
 289            })
 290            .on_conflict(
 291                OnConflict::column(user::Column::GithubLogin)
 292                    .update_column(user::Column::GithubLogin)
 293                    .to_owned(),
 294            )
 295            .exec_with_returning(&*tx)
 296            .await?;
 297
 298            Ok(NewUserResult {
 299                user_id: user.id,
 300                metrics_id: user.metrics_id.to_string(),
 301                signup_device_id: None,
 302                inviting_user_id: None,
 303            })
 304        })
 305        .await
 306    }
 307
 308    pub async fn get_user_by_id(&self, id: UserId) -> Result<Option<user::Model>> {
 309        self.transaction(|tx| async move { Ok(user::Entity::find_by_id(id).one(&*tx).await?) })
 310            .await
 311    }
 312
 313    pub async fn get_users_by_ids(&self, ids: Vec<UserId>) -> Result<Vec<user::Model>> {
 314        self.transaction(|tx| async {
 315            let tx = tx;
 316            Ok(user::Entity::find()
 317                .filter(user::Column::Id.is_in(ids.iter().copied()))
 318                .all(&*tx)
 319                .await?)
 320        })
 321        .await
 322    }
 323
 324    pub async fn get_user_by_github_account(
 325        &self,
 326        github_login: &str,
 327        github_user_id: Option<i32>,
 328    ) -> Result<Option<User>> {
 329        self.transaction(|tx| async move {
 330            let tx = &*tx;
 331            if let Some(github_user_id) = github_user_id {
 332                if let Some(user_by_github_user_id) = user::Entity::find()
 333                    .filter(user::Column::GithubUserId.eq(github_user_id))
 334                    .one(tx)
 335                    .await?
 336                {
 337                    let mut user_by_github_user_id = user_by_github_user_id.into_active_model();
 338                    user_by_github_user_id.github_login = ActiveValue::set(github_login.into());
 339                    Ok(Some(user_by_github_user_id.update(tx).await?))
 340                } else if let Some(user_by_github_login) = user::Entity::find()
 341                    .filter(user::Column::GithubLogin.eq(github_login))
 342                    .one(tx)
 343                    .await?
 344                {
 345                    let mut user_by_github_login = user_by_github_login.into_active_model();
 346                    user_by_github_login.github_user_id = ActiveValue::set(Some(github_user_id));
 347                    Ok(Some(user_by_github_login.update(tx).await?))
 348                } else {
 349                    Ok(None)
 350                }
 351            } else {
 352                Ok(user::Entity::find()
 353                    .filter(user::Column::GithubLogin.eq(github_login))
 354                    .one(tx)
 355                    .await?)
 356            }
 357        })
 358        .await
 359    }
 360
 361    pub async fn get_all_users(&self, page: u32, limit: u32) -> Result<Vec<User>> {
 362        self.transaction(|tx| async move {
 363            Ok(user::Entity::find()
 364                .order_by_asc(user::Column::GithubLogin)
 365                .limit(limit as u64)
 366                .offset(page as u64 * limit as u64)
 367                .all(&*tx)
 368                .await?)
 369        })
 370        .await
 371    }
 372
 373    pub async fn get_users_with_no_invites(
 374        &self,
 375        invited_by_another_user: bool,
 376    ) -> Result<Vec<User>> {
 377        self.transaction(|tx| async move {
 378            Ok(user::Entity::find()
 379                .filter(
 380                    user::Column::InviteCount
 381                        .eq(0)
 382                        .and(if invited_by_another_user {
 383                            user::Column::InviterId.is_not_null()
 384                        } else {
 385                            user::Column::InviterId.is_null()
 386                        }),
 387                )
 388                .all(&*tx)
 389                .await?)
 390        })
 391        .await
 392    }
 393
 394    pub async fn get_user_metrics_id(&self, id: UserId) -> Result<String> {
 395        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
 396        enum QueryAs {
 397            MetricsId,
 398        }
 399
 400        self.transaction(|tx| async move {
 401            let metrics_id: Uuid = user::Entity::find_by_id(id)
 402                .select_only()
 403                .column(user::Column::MetricsId)
 404                .into_values::<_, QueryAs>()
 405                .one(&*tx)
 406                .await?
 407                .ok_or_else(|| anyhow!("could not find user"))?;
 408            Ok(metrics_id.to_string())
 409        })
 410        .await
 411    }
 412
 413    pub async fn set_user_is_admin(&self, id: UserId, is_admin: bool) -> Result<()> {
 414        self.transaction(|tx| async move {
 415            user::Entity::update_many()
 416                .filter(user::Column::Id.eq(id))
 417                .set(user::ActiveModel {
 418                    admin: ActiveValue::set(is_admin),
 419                    ..Default::default()
 420                })
 421                .exec(&*tx)
 422                .await?;
 423            Ok(())
 424        })
 425        .await
 426    }
 427
 428    pub async fn set_user_connected_once(&self, id: UserId, connected_once: bool) -> Result<()> {
 429        self.transaction(|tx| async move {
 430            user::Entity::update_many()
 431                .filter(user::Column::Id.eq(id))
 432                .set(user::ActiveModel {
 433                    connected_once: ActiveValue::set(connected_once),
 434                    ..Default::default()
 435                })
 436                .exec(&*tx)
 437                .await?;
 438            Ok(())
 439        })
 440        .await
 441    }
 442
 443    pub async fn destroy_user(&self, id: UserId) -> Result<()> {
 444        self.transaction(|tx| async move {
 445            access_token::Entity::delete_many()
 446                .filter(access_token::Column::UserId.eq(id))
 447                .exec(&*tx)
 448                .await?;
 449            user::Entity::delete_by_id(id).exec(&*tx).await?;
 450            Ok(())
 451        })
 452        .await
 453    }
 454
 455    // contacts
 456
 457    pub async fn get_contacts(&self, user_id: UserId) -> Result<Vec<Contact>> {
 458        #[derive(Debug, FromQueryResult)]
 459        struct ContactWithUserBusyStatuses {
 460            user_id_a: UserId,
 461            user_id_b: UserId,
 462            a_to_b: bool,
 463            accepted: bool,
 464            should_notify: bool,
 465            user_a_busy: bool,
 466            user_b_busy: bool,
 467        }
 468
 469        self.transaction(|tx| async move {
 470            let user_a_participant = Alias::new("user_a_participant");
 471            let user_b_participant = Alias::new("user_b_participant");
 472            let mut db_contacts = contact::Entity::find()
 473                .column_as(
 474                    Expr::tbl(user_a_participant.clone(), room_participant::Column::Id)
 475                        .is_not_null(),
 476                    "user_a_busy",
 477                )
 478                .column_as(
 479                    Expr::tbl(user_b_participant.clone(), room_participant::Column::Id)
 480                        .is_not_null(),
 481                    "user_b_busy",
 482                )
 483                .filter(
 484                    contact::Column::UserIdA
 485                        .eq(user_id)
 486                        .or(contact::Column::UserIdB.eq(user_id)),
 487                )
 488                .join_as(
 489                    JoinType::LeftJoin,
 490                    contact::Relation::UserARoomParticipant.def(),
 491                    user_a_participant,
 492                )
 493                .join_as(
 494                    JoinType::LeftJoin,
 495                    contact::Relation::UserBRoomParticipant.def(),
 496                    user_b_participant,
 497                )
 498                .into_model::<ContactWithUserBusyStatuses>()
 499                .stream(&*tx)
 500                .await?;
 501
 502            let mut contacts = Vec::new();
 503            while let Some(db_contact) = db_contacts.next().await {
 504                let db_contact = db_contact?;
 505                if db_contact.user_id_a == user_id {
 506                    if db_contact.accepted {
 507                        contacts.push(Contact::Accepted {
 508                            user_id: db_contact.user_id_b,
 509                            should_notify: db_contact.should_notify && db_contact.a_to_b,
 510                            busy: db_contact.user_b_busy,
 511                        });
 512                    } else if db_contact.a_to_b {
 513                        contacts.push(Contact::Outgoing {
 514                            user_id: db_contact.user_id_b,
 515                        })
 516                    } else {
 517                        contacts.push(Contact::Incoming {
 518                            user_id: db_contact.user_id_b,
 519                            should_notify: db_contact.should_notify,
 520                        });
 521                    }
 522                } else if db_contact.accepted {
 523                    contacts.push(Contact::Accepted {
 524                        user_id: db_contact.user_id_a,
 525                        should_notify: db_contact.should_notify && !db_contact.a_to_b,
 526                        busy: db_contact.user_a_busy,
 527                    });
 528                } else if db_contact.a_to_b {
 529                    contacts.push(Contact::Incoming {
 530                        user_id: db_contact.user_id_a,
 531                        should_notify: db_contact.should_notify,
 532                    });
 533                } else {
 534                    contacts.push(Contact::Outgoing {
 535                        user_id: db_contact.user_id_a,
 536                    });
 537                }
 538            }
 539
 540            contacts.sort_unstable_by_key(|contact| contact.user_id());
 541
 542            Ok(contacts)
 543        })
 544        .await
 545    }
 546
 547    pub async fn is_user_busy(&self, user_id: UserId) -> Result<bool> {
 548        self.transaction(|tx| async move {
 549            let participant = room_participant::Entity::find()
 550                .filter(room_participant::Column::UserId.eq(user_id))
 551                .one(&*tx)
 552                .await?;
 553            Ok(participant.is_some())
 554        })
 555        .await
 556    }
 557
 558    pub async fn has_contact(&self, user_id_1: UserId, user_id_2: UserId) -> Result<bool> {
 559        self.transaction(|tx| async move {
 560            let (id_a, id_b) = if user_id_1 < user_id_2 {
 561                (user_id_1, user_id_2)
 562            } else {
 563                (user_id_2, user_id_1)
 564            };
 565
 566            Ok(contact::Entity::find()
 567                .filter(
 568                    contact::Column::UserIdA
 569                        .eq(id_a)
 570                        .and(contact::Column::UserIdB.eq(id_b))
 571                        .and(contact::Column::Accepted.eq(true)),
 572                )
 573                .one(&*tx)
 574                .await?
 575                .is_some())
 576        })
 577        .await
 578    }
 579
 580    pub async fn send_contact_request(&self, sender_id: UserId, receiver_id: UserId) -> Result<()> {
 581        self.transaction(|tx| async move {
 582            let (id_a, id_b, a_to_b) = if sender_id < receiver_id {
 583                (sender_id, receiver_id, true)
 584            } else {
 585                (receiver_id, sender_id, false)
 586            };
 587
 588            let rows_affected = contact::Entity::insert(contact::ActiveModel {
 589                user_id_a: ActiveValue::set(id_a),
 590                user_id_b: ActiveValue::set(id_b),
 591                a_to_b: ActiveValue::set(a_to_b),
 592                accepted: ActiveValue::set(false),
 593                should_notify: ActiveValue::set(true),
 594                ..Default::default()
 595            })
 596            .on_conflict(
 597                OnConflict::columns([contact::Column::UserIdA, contact::Column::UserIdB])
 598                    .values([
 599                        (contact::Column::Accepted, true.into()),
 600                        (contact::Column::ShouldNotify, false.into()),
 601                    ])
 602                    .action_and_where(
 603                        contact::Column::Accepted.eq(false).and(
 604                            contact::Column::AToB
 605                                .eq(a_to_b)
 606                                .and(contact::Column::UserIdA.eq(id_b))
 607                                .or(contact::Column::AToB
 608                                    .ne(a_to_b)
 609                                    .and(contact::Column::UserIdA.eq(id_a))),
 610                        ),
 611                    )
 612                    .to_owned(),
 613            )
 614            .exec_without_returning(&*tx)
 615            .await?;
 616
 617            if rows_affected == 1 {
 618                Ok(())
 619            } else {
 620                Err(anyhow!("contact already requested"))?
 621            }
 622        })
 623        .await
 624    }
 625
 626    pub async fn remove_contact(&self, requester_id: UserId, responder_id: UserId) -> Result<()> {
 627        self.transaction(|tx| async move {
 628            let (id_a, id_b) = if responder_id < requester_id {
 629                (responder_id, requester_id)
 630            } else {
 631                (requester_id, responder_id)
 632            };
 633
 634            let result = contact::Entity::delete_many()
 635                .filter(
 636                    contact::Column::UserIdA
 637                        .eq(id_a)
 638                        .and(contact::Column::UserIdB.eq(id_b)),
 639                )
 640                .exec(&*tx)
 641                .await?;
 642
 643            if result.rows_affected == 1 {
 644                Ok(())
 645            } else {
 646                Err(anyhow!("no such contact"))?
 647            }
 648        })
 649        .await
 650    }
 651
 652    pub async fn dismiss_contact_notification(
 653        &self,
 654        user_id: UserId,
 655        contact_user_id: UserId,
 656    ) -> Result<()> {
 657        self.transaction(|tx| async move {
 658            let (id_a, id_b, a_to_b) = if user_id < contact_user_id {
 659                (user_id, contact_user_id, true)
 660            } else {
 661                (contact_user_id, user_id, false)
 662            };
 663
 664            let result = contact::Entity::update_many()
 665                .set(contact::ActiveModel {
 666                    should_notify: ActiveValue::set(false),
 667                    ..Default::default()
 668                })
 669                .filter(
 670                    contact::Column::UserIdA
 671                        .eq(id_a)
 672                        .and(contact::Column::UserIdB.eq(id_b))
 673                        .and(
 674                            contact::Column::AToB
 675                                .eq(a_to_b)
 676                                .and(contact::Column::Accepted.eq(true))
 677                                .or(contact::Column::AToB
 678                                    .ne(a_to_b)
 679                                    .and(contact::Column::Accepted.eq(false))),
 680                        ),
 681                )
 682                .exec(&*tx)
 683                .await?;
 684            if result.rows_affected == 0 {
 685                Err(anyhow!("no such contact request"))?
 686            } else {
 687                Ok(())
 688            }
 689        })
 690        .await
 691    }
 692
 693    pub async fn respond_to_contact_request(
 694        &self,
 695        responder_id: UserId,
 696        requester_id: UserId,
 697        accept: bool,
 698    ) -> Result<()> {
 699        self.transaction(|tx| async move {
 700            let (id_a, id_b, a_to_b) = if responder_id < requester_id {
 701                (responder_id, requester_id, false)
 702            } else {
 703                (requester_id, responder_id, true)
 704            };
 705            let rows_affected = if accept {
 706                let result = contact::Entity::update_many()
 707                    .set(contact::ActiveModel {
 708                        accepted: ActiveValue::set(true),
 709                        should_notify: ActiveValue::set(true),
 710                        ..Default::default()
 711                    })
 712                    .filter(
 713                        contact::Column::UserIdA
 714                            .eq(id_a)
 715                            .and(contact::Column::UserIdB.eq(id_b))
 716                            .and(contact::Column::AToB.eq(a_to_b)),
 717                    )
 718                    .exec(&*tx)
 719                    .await?;
 720                result.rows_affected
 721            } else {
 722                let result = contact::Entity::delete_many()
 723                    .filter(
 724                        contact::Column::UserIdA
 725                            .eq(id_a)
 726                            .and(contact::Column::UserIdB.eq(id_b))
 727                            .and(contact::Column::AToB.eq(a_to_b))
 728                            .and(contact::Column::Accepted.eq(false)),
 729                    )
 730                    .exec(&*tx)
 731                    .await?;
 732
 733                result.rows_affected
 734            };
 735
 736            if rows_affected == 1 {
 737                Ok(())
 738            } else {
 739                Err(anyhow!("no such contact request"))?
 740            }
 741        })
 742        .await
 743    }
 744
 745    pub fn fuzzy_like_string(string: &str) -> String {
 746        let mut result = String::with_capacity(string.len() * 2 + 1);
 747        for c in string.chars() {
 748            if c.is_alphanumeric() {
 749                result.push('%');
 750                result.push(c);
 751            }
 752        }
 753        result.push('%');
 754        result
 755    }
 756
 757    pub async fn fuzzy_search_users(&self, name_query: &str, limit: u32) -> Result<Vec<User>> {
 758        self.transaction(|tx| async {
 759            let tx = tx;
 760            let like_string = Self::fuzzy_like_string(name_query);
 761            let query = "
 762                SELECT users.*
 763                FROM users
 764                WHERE github_login ILIKE $1
 765                ORDER BY github_login <-> $2
 766                LIMIT $3
 767            ";
 768
 769            Ok(user::Entity::find()
 770                .from_raw_sql(Statement::from_sql_and_values(
 771                    self.pool.get_database_backend(),
 772                    query.into(),
 773                    vec![like_string.into(), name_query.into(), limit.into()],
 774                ))
 775                .all(&*tx)
 776                .await?)
 777        })
 778        .await
 779    }
 780
 781    // signups
 782
 783    pub async fn create_signup(&self, signup: &NewSignup) -> Result<()> {
 784        self.transaction(|tx| async move {
 785            signup::Entity::insert(signup::ActiveModel {
 786                email_address: ActiveValue::set(signup.email_address.clone()),
 787                email_confirmation_code: ActiveValue::set(random_email_confirmation_code()),
 788                email_confirmation_sent: ActiveValue::set(false),
 789                platform_mac: ActiveValue::set(signup.platform_mac),
 790                platform_windows: ActiveValue::set(signup.platform_windows),
 791                platform_linux: ActiveValue::set(signup.platform_linux),
 792                platform_unknown: ActiveValue::set(false),
 793                editor_features: ActiveValue::set(Some(signup.editor_features.clone())),
 794                programming_languages: ActiveValue::set(Some(signup.programming_languages.clone())),
 795                device_id: ActiveValue::set(signup.device_id.clone()),
 796                added_to_mailing_list: ActiveValue::set(signup.added_to_mailing_list),
 797                ..Default::default()
 798            })
 799            .on_conflict(
 800                OnConflict::column(signup::Column::EmailAddress)
 801                    .update_columns([
 802                        signup::Column::PlatformMac,
 803                        signup::Column::PlatformWindows,
 804                        signup::Column::PlatformLinux,
 805                        signup::Column::EditorFeatures,
 806                        signup::Column::ProgrammingLanguages,
 807                        signup::Column::DeviceId,
 808                        signup::Column::AddedToMailingList,
 809                    ])
 810                    .to_owned(),
 811            )
 812            .exec(&*tx)
 813            .await?;
 814            Ok(())
 815        })
 816        .await
 817    }
 818
 819    pub async fn get_signup(&self, email_address: &str) -> Result<signup::Model> {
 820        self.transaction(|tx| async move {
 821            let signup = signup::Entity::find()
 822                .filter(signup::Column::EmailAddress.eq(email_address))
 823                .one(&*tx)
 824                .await?
 825                .ok_or_else(|| {
 826                    anyhow!("signup with email address {} doesn't exist", email_address)
 827                })?;
 828
 829            Ok(signup)
 830        })
 831        .await
 832    }
 833
 834    pub async fn get_waitlist_summary(&self) -> Result<WaitlistSummary> {
 835        self.transaction(|tx| async move {
 836            let query = "
 837                SELECT
 838                    COUNT(*) as count,
 839                    COALESCE(SUM(CASE WHEN platform_linux THEN 1 ELSE 0 END), 0) as linux_count,
 840                    COALESCE(SUM(CASE WHEN platform_mac THEN 1 ELSE 0 END), 0) as mac_count,
 841                    COALESCE(SUM(CASE WHEN platform_windows THEN 1 ELSE 0 END), 0) as windows_count,
 842                    COALESCE(SUM(CASE WHEN platform_unknown THEN 1 ELSE 0 END), 0) as unknown_count
 843                FROM (
 844                    SELECT *
 845                    FROM signups
 846                    WHERE
 847                        NOT email_confirmation_sent
 848                ) AS unsent
 849            ";
 850            Ok(
 851                WaitlistSummary::find_by_statement(Statement::from_sql_and_values(
 852                    self.pool.get_database_backend(),
 853                    query.into(),
 854                    vec![],
 855                ))
 856                .one(&*tx)
 857                .await?
 858                .ok_or_else(|| anyhow!("invalid result"))?,
 859            )
 860        })
 861        .await
 862    }
 863
 864    pub async fn record_sent_invites(&self, invites: &[Invite]) -> Result<()> {
 865        let emails = invites
 866            .iter()
 867            .map(|s| s.email_address.as_str())
 868            .collect::<Vec<_>>();
 869        self.transaction(|tx| async {
 870            let tx = tx;
 871            signup::Entity::update_many()
 872                .filter(signup::Column::EmailAddress.is_in(emails.iter().copied()))
 873                .set(signup::ActiveModel {
 874                    email_confirmation_sent: ActiveValue::set(true),
 875                    ..Default::default()
 876                })
 877                .exec(&*tx)
 878                .await?;
 879            Ok(())
 880        })
 881        .await
 882    }
 883
 884    pub async fn get_unsent_invites(&self, count: usize) -> Result<Vec<Invite>> {
 885        self.transaction(|tx| async move {
 886            Ok(signup::Entity::find()
 887                .select_only()
 888                .column(signup::Column::EmailAddress)
 889                .column(signup::Column::EmailConfirmationCode)
 890                .filter(
 891                    signup::Column::EmailConfirmationSent.eq(false).and(
 892                        signup::Column::PlatformMac
 893                            .eq(true)
 894                            .or(signup::Column::PlatformUnknown.eq(true)),
 895                    ),
 896                )
 897                .order_by_asc(signup::Column::CreatedAt)
 898                .limit(count as u64)
 899                .into_model()
 900                .all(&*tx)
 901                .await?)
 902        })
 903        .await
 904    }
 905
 906    // invite codes
 907
 908    pub async fn create_invite_from_code(
 909        &self,
 910        code: &str,
 911        email_address: &str,
 912        device_id: Option<&str>,
 913    ) -> Result<Invite> {
 914        self.transaction(|tx| async move {
 915            let existing_user = user::Entity::find()
 916                .filter(user::Column::EmailAddress.eq(email_address))
 917                .one(&*tx)
 918                .await?;
 919
 920            if existing_user.is_some() {
 921                Err(anyhow!("email address is already in use"))?;
 922            }
 923
 924            let inviting_user_with_invites = match user::Entity::find()
 925                .filter(
 926                    user::Column::InviteCode
 927                        .eq(code)
 928                        .and(user::Column::InviteCount.gt(0)),
 929                )
 930                .one(&*tx)
 931                .await?
 932            {
 933                Some(inviting_user) => inviting_user,
 934                None => {
 935                    return Err(Error::Http(
 936                        StatusCode::UNAUTHORIZED,
 937                        "unable to find an invite code with invites remaining".to_string(),
 938                    ))?
 939                }
 940            };
 941            user::Entity::update_many()
 942                .filter(
 943                    user::Column::Id
 944                        .eq(inviting_user_with_invites.id)
 945                        .and(user::Column::InviteCount.gt(0)),
 946                )
 947                .col_expr(
 948                    user::Column::InviteCount,
 949                    Expr::col(user::Column::InviteCount).sub(1),
 950                )
 951                .exec(&*tx)
 952                .await?;
 953
 954            let signup = signup::Entity::insert(signup::ActiveModel {
 955                email_address: ActiveValue::set(email_address.into()),
 956                email_confirmation_code: ActiveValue::set(random_email_confirmation_code()),
 957                email_confirmation_sent: ActiveValue::set(false),
 958                inviting_user_id: ActiveValue::set(Some(inviting_user_with_invites.id)),
 959                platform_linux: ActiveValue::set(false),
 960                platform_mac: ActiveValue::set(false),
 961                platform_windows: ActiveValue::set(false),
 962                platform_unknown: ActiveValue::set(true),
 963                device_id: ActiveValue::set(device_id.map(|device_id| device_id.into())),
 964                ..Default::default()
 965            })
 966            .on_conflict(
 967                OnConflict::column(signup::Column::EmailAddress)
 968                    .update_column(signup::Column::InvitingUserId)
 969                    .to_owned(),
 970            )
 971            .exec_with_returning(&*tx)
 972            .await?;
 973
 974            Ok(Invite {
 975                email_address: signup.email_address,
 976                email_confirmation_code: signup.email_confirmation_code,
 977            })
 978        })
 979        .await
 980    }
 981
 982    pub async fn create_user_from_invite(
 983        &self,
 984        invite: &Invite,
 985        user: NewUserParams,
 986    ) -> Result<Option<NewUserResult>> {
 987        self.transaction(|tx| async {
 988            let tx = tx;
 989            let signup = signup::Entity::find()
 990                .filter(
 991                    signup::Column::EmailAddress
 992                        .eq(invite.email_address.as_str())
 993                        .and(
 994                            signup::Column::EmailConfirmationCode
 995                                .eq(invite.email_confirmation_code.as_str()),
 996                        ),
 997                )
 998                .one(&*tx)
 999                .await?
1000                .ok_or_else(|| Error::Http(StatusCode::NOT_FOUND, "no such invite".to_string()))?;
1001
1002            if signup.user_id.is_some() {
1003                return Ok(None);
1004            }
1005
1006            let user = user::Entity::insert(user::ActiveModel {
1007                email_address: ActiveValue::set(Some(invite.email_address.clone())),
1008                github_login: ActiveValue::set(user.github_login.clone()),
1009                github_user_id: ActiveValue::set(Some(user.github_user_id)),
1010                admin: ActiveValue::set(false),
1011                invite_count: ActiveValue::set(user.invite_count),
1012                invite_code: ActiveValue::set(Some(random_invite_code())),
1013                metrics_id: ActiveValue::set(Uuid::new_v4()),
1014                ..Default::default()
1015            })
1016            .on_conflict(
1017                OnConflict::column(user::Column::GithubLogin)
1018                    .update_columns([
1019                        user::Column::EmailAddress,
1020                        user::Column::GithubUserId,
1021                        user::Column::Admin,
1022                    ])
1023                    .to_owned(),
1024            )
1025            .exec_with_returning(&*tx)
1026            .await?;
1027
1028            let mut signup = signup.into_active_model();
1029            signup.user_id = ActiveValue::set(Some(user.id));
1030            let signup = signup.update(&*tx).await?;
1031
1032            if let Some(inviting_user_id) = signup.inviting_user_id {
1033                let (user_id_a, user_id_b, a_to_b) = if inviting_user_id < user.id {
1034                    (inviting_user_id, user.id, true)
1035                } else {
1036                    (user.id, inviting_user_id, false)
1037                };
1038
1039                contact::Entity::insert(contact::ActiveModel {
1040                    user_id_a: ActiveValue::set(user_id_a),
1041                    user_id_b: ActiveValue::set(user_id_b),
1042                    a_to_b: ActiveValue::set(a_to_b),
1043                    should_notify: ActiveValue::set(true),
1044                    accepted: ActiveValue::set(true),
1045                    ..Default::default()
1046                })
1047                .on_conflict(OnConflict::new().do_nothing().to_owned())
1048                .exec_without_returning(&*tx)
1049                .await?;
1050            }
1051
1052            Ok(Some(NewUserResult {
1053                user_id: user.id,
1054                metrics_id: user.metrics_id.to_string(),
1055                inviting_user_id: signup.inviting_user_id,
1056                signup_device_id: signup.device_id,
1057            }))
1058        })
1059        .await
1060    }
1061
1062    pub async fn set_invite_count_for_user(&self, id: UserId, count: i32) -> Result<()> {
1063        self.transaction(|tx| async move {
1064            if count > 0 {
1065                user::Entity::update_many()
1066                    .filter(
1067                        user::Column::Id
1068                            .eq(id)
1069                            .and(user::Column::InviteCode.is_null()),
1070                    )
1071                    .set(user::ActiveModel {
1072                        invite_code: ActiveValue::set(Some(random_invite_code())),
1073                        ..Default::default()
1074                    })
1075                    .exec(&*tx)
1076                    .await?;
1077            }
1078
1079            user::Entity::update_many()
1080                .filter(user::Column::Id.eq(id))
1081                .set(user::ActiveModel {
1082                    invite_count: ActiveValue::set(count),
1083                    ..Default::default()
1084                })
1085                .exec(&*tx)
1086                .await?;
1087            Ok(())
1088        })
1089        .await
1090    }
1091
1092    pub async fn get_invite_code_for_user(&self, id: UserId) -> Result<Option<(String, i32)>> {
1093        self.transaction(|tx| async move {
1094            match user::Entity::find_by_id(id).one(&*tx).await? {
1095                Some(user) if user.invite_code.is_some() => {
1096                    Ok(Some((user.invite_code.unwrap(), user.invite_count)))
1097                }
1098                _ => Ok(None),
1099            }
1100        })
1101        .await
1102    }
1103
1104    pub async fn get_user_for_invite_code(&self, code: &str) -> Result<User> {
1105        self.transaction(|tx| async move {
1106            user::Entity::find()
1107                .filter(user::Column::InviteCode.eq(code))
1108                .one(&*tx)
1109                .await?
1110                .ok_or_else(|| {
1111                    Error::Http(
1112                        StatusCode::NOT_FOUND,
1113                        "that invite code does not exist".to_string(),
1114                    )
1115                })
1116        })
1117        .await
1118    }
1119
1120    // rooms
1121
1122    pub async fn incoming_call_for_user(
1123        &self,
1124        user_id: UserId,
1125    ) -> Result<Option<proto::IncomingCall>> {
1126        self.transaction(|tx| async move {
1127            let pending_participant = room_participant::Entity::find()
1128                .filter(
1129                    room_participant::Column::UserId
1130                        .eq(user_id)
1131                        .and(room_participant::Column::AnsweringConnectionId.is_null()),
1132                )
1133                .one(&*tx)
1134                .await?;
1135
1136            if let Some(pending_participant) = pending_participant {
1137                let room = self.get_room(pending_participant.room_id, &tx).await?;
1138                Ok(Self::build_incoming_call(&room, user_id))
1139            } else {
1140                Ok(None)
1141            }
1142        })
1143        .await
1144    }
1145
1146    pub async fn create_room(
1147        &self,
1148        user_id: UserId,
1149        connection: ConnectionId,
1150        live_kit_room: &str,
1151    ) -> Result<RoomGuard<proto::Room>> {
1152        self.room_transaction(|tx| async move {
1153            let room = room::ActiveModel {
1154                live_kit_room: ActiveValue::set(live_kit_room.into()),
1155                ..Default::default()
1156            }
1157            .insert(&*tx)
1158            .await?;
1159            let room_id = room.id;
1160
1161            room_participant::ActiveModel {
1162                room_id: ActiveValue::set(room_id),
1163                user_id: ActiveValue::set(user_id),
1164                answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
1165                answering_connection_server_id: ActiveValue::set(Some(ServerId(
1166                    connection.owner_id as i32,
1167                ))),
1168                answering_connection_lost: ActiveValue::set(false),
1169                calling_user_id: ActiveValue::set(user_id),
1170                calling_connection_id: ActiveValue::set(connection.id as i32),
1171                calling_connection_server_id: ActiveValue::set(Some(ServerId(
1172                    connection.owner_id as i32,
1173                ))),
1174                ..Default::default()
1175            }
1176            .insert(&*tx)
1177            .await?;
1178
1179            let room = self.get_room(room_id, &tx).await?;
1180            Ok((room_id, room))
1181        })
1182        .await
1183    }
1184
1185    pub async fn call(
1186        &self,
1187        room_id: RoomId,
1188        calling_user_id: UserId,
1189        calling_connection: ConnectionId,
1190        called_user_id: UserId,
1191        initial_project_id: Option<ProjectId>,
1192    ) -> Result<RoomGuard<(proto::Room, proto::IncomingCall)>> {
1193        self.room_transaction(|tx| async move {
1194            room_participant::ActiveModel {
1195                room_id: ActiveValue::set(room_id),
1196                user_id: ActiveValue::set(called_user_id),
1197                answering_connection_lost: ActiveValue::set(false),
1198                calling_user_id: ActiveValue::set(calling_user_id),
1199                calling_connection_id: ActiveValue::set(calling_connection.id as i32),
1200                calling_connection_server_id: ActiveValue::set(Some(ServerId(
1201                    calling_connection.owner_id as i32,
1202                ))),
1203                initial_project_id: ActiveValue::set(initial_project_id),
1204                ..Default::default()
1205            }
1206            .insert(&*tx)
1207            .await?;
1208
1209            let room = self.get_room(room_id, &tx).await?;
1210            let incoming_call = Self::build_incoming_call(&room, called_user_id)
1211                .ok_or_else(|| anyhow!("failed to build incoming call"))?;
1212            Ok((room_id, (room, incoming_call)))
1213        })
1214        .await
1215    }
1216
1217    pub async fn call_failed(
1218        &self,
1219        room_id: RoomId,
1220        called_user_id: UserId,
1221    ) -> Result<RoomGuard<proto::Room>> {
1222        self.room_transaction(|tx| async move {
1223            room_participant::Entity::delete_many()
1224                .filter(
1225                    room_participant::Column::RoomId
1226                        .eq(room_id)
1227                        .and(room_participant::Column::UserId.eq(called_user_id)),
1228                )
1229                .exec(&*tx)
1230                .await?;
1231            let room = self.get_room(room_id, &tx).await?;
1232            Ok((room_id, room))
1233        })
1234        .await
1235    }
1236
1237    pub async fn decline_call(
1238        &self,
1239        expected_room_id: Option<RoomId>,
1240        user_id: UserId,
1241    ) -> Result<Option<RoomGuard<proto::Room>>> {
1242        self.optional_room_transaction(|tx| async move {
1243            let mut filter = Condition::all()
1244                .add(room_participant::Column::UserId.eq(user_id))
1245                .add(room_participant::Column::AnsweringConnectionId.is_null());
1246            if let Some(room_id) = expected_room_id {
1247                filter = filter.add(room_participant::Column::RoomId.eq(room_id));
1248            }
1249            let participant = room_participant::Entity::find()
1250                .filter(filter)
1251                .one(&*tx)
1252                .await?;
1253
1254            let participant = if let Some(participant) = participant {
1255                participant
1256            } else if expected_room_id.is_some() {
1257                return Err(anyhow!("could not find call to decline"))?;
1258            } else {
1259                return Ok(None);
1260            };
1261
1262            let room_id = participant.room_id;
1263            room_participant::Entity::delete(participant.into_active_model())
1264                .exec(&*tx)
1265                .await?;
1266
1267            let room = self.get_room(room_id, &tx).await?;
1268            Ok(Some((room_id, room)))
1269        })
1270        .await
1271    }
1272
1273    pub async fn cancel_call(
1274        &self,
1275        room_id: RoomId,
1276        calling_connection: ConnectionId,
1277        called_user_id: UserId,
1278    ) -> Result<RoomGuard<proto::Room>> {
1279        self.room_transaction(|tx| async move {
1280            let participant = room_participant::Entity::find()
1281                .filter(
1282                    Condition::all()
1283                        .add(room_participant::Column::UserId.eq(called_user_id))
1284                        .add(room_participant::Column::RoomId.eq(room_id))
1285                        .add(
1286                            room_participant::Column::CallingConnectionId
1287                                .eq(calling_connection.id as i32),
1288                        )
1289                        .add(
1290                            room_participant::Column::CallingConnectionServerId
1291                                .eq(calling_connection.owner_id as i32),
1292                        )
1293                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
1294                )
1295                .one(&*tx)
1296                .await?
1297                .ok_or_else(|| anyhow!("no call to cancel"))?;
1298            let room_id = participant.room_id;
1299
1300            room_participant::Entity::delete(participant.into_active_model())
1301                .exec(&*tx)
1302                .await?;
1303
1304            let room = self.get_room(room_id, &tx).await?;
1305            Ok((room_id, room))
1306        })
1307        .await
1308    }
1309
1310    pub async fn join_room(
1311        &self,
1312        room_id: RoomId,
1313        user_id: UserId,
1314        connection: ConnectionId,
1315    ) -> Result<RoomGuard<proto::Room>> {
1316        self.room_transaction(|tx| async move {
1317            let result = room_participant::Entity::update_many()
1318                .filter(
1319                    Condition::all()
1320                        .add(room_participant::Column::RoomId.eq(room_id))
1321                        .add(room_participant::Column::UserId.eq(user_id))
1322                        .add(room_participant::Column::AnsweringConnectionId.is_null()),
1323                )
1324                .set(room_participant::ActiveModel {
1325                    answering_connection_id: ActiveValue::set(Some(connection.id as i32)),
1326                    answering_connection_server_id: ActiveValue::set(Some(ServerId(
1327                        connection.owner_id as i32,
1328                    ))),
1329                    answering_connection_lost: ActiveValue::set(false),
1330                    ..Default::default()
1331                })
1332                .exec(&*tx)
1333                .await?;
1334            if result.rows_affected == 0 {
1335                Err(anyhow!("room does not exist or was already joined"))?
1336            } else {
1337                let room = self.get_room(room_id, &tx).await?;
1338                Ok((room_id, room))
1339            }
1340        })
1341        .await
1342    }
1343
1344    pub async fn rejoin_room(
1345        &self,
1346        room_id: proto::RejoinRoom,
1347        user_id: UserId,
1348        connection_id: ConnectionId,
1349    ) -> Result<RejoinedRoom> {
1350        println!("==============");
1351        todo!()
1352    }
1353
1354    pub async fn leave_room(
1355        &self,
1356        connection: ConnectionId,
1357    ) -> Result<Option<RoomGuard<LeftRoom>>> {
1358        self.optional_room_transaction(|tx| async move {
1359            let leaving_participant = room_participant::Entity::find()
1360                .filter(
1361                    Condition::all()
1362                        .add(
1363                            room_participant::Column::AnsweringConnectionId
1364                                .eq(connection.id as i32),
1365                        )
1366                        .add(
1367                            room_participant::Column::AnsweringConnectionServerId
1368                                .eq(connection.owner_id as i32),
1369                        ),
1370                )
1371                .one(&*tx)
1372                .await?;
1373
1374            if let Some(leaving_participant) = leaving_participant {
1375                // Leave room.
1376                let room_id = leaving_participant.room_id;
1377                room_participant::Entity::delete_by_id(leaving_participant.id)
1378                    .exec(&*tx)
1379                    .await?;
1380
1381                // Cancel pending calls initiated by the leaving user.
1382                let called_participants = room_participant::Entity::find()
1383                    .filter(
1384                        Condition::all()
1385                            .add(
1386                                room_participant::Column::CallingConnectionId
1387                                    .eq(connection.id as i32),
1388                            )
1389                            .add(
1390                                room_participant::Column::CallingConnectionServerId
1391                                    .eq(connection.owner_id as i32),
1392                            )
1393                            .add(room_participant::Column::AnsweringConnectionId.is_null()),
1394                    )
1395                    .all(&*tx)
1396                    .await?;
1397                room_participant::Entity::delete_many()
1398                    .filter(
1399                        room_participant::Column::Id
1400                            .is_in(called_participants.iter().map(|participant| participant.id)),
1401                    )
1402                    .exec(&*tx)
1403                    .await?;
1404                let canceled_calls_to_user_ids = called_participants
1405                    .into_iter()
1406                    .map(|participant| participant.user_id)
1407                    .collect();
1408
1409                // Detect left projects.
1410                #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
1411                enum QueryProjectIds {
1412                    ProjectId,
1413                }
1414                let project_ids: Vec<ProjectId> = project_collaborator::Entity::find()
1415                    .select_only()
1416                    .column_as(
1417                        project_collaborator::Column::ProjectId,
1418                        QueryProjectIds::ProjectId,
1419                    )
1420                    .filter(
1421                        Condition::all()
1422                            .add(
1423                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1424                            )
1425                            .add(
1426                                project_collaborator::Column::ConnectionServerId
1427                                    .eq(connection.owner_id as i32),
1428                            ),
1429                    )
1430                    .into_values::<_, QueryProjectIds>()
1431                    .all(&*tx)
1432                    .await?;
1433                let mut left_projects = HashMap::default();
1434                let mut collaborators = project_collaborator::Entity::find()
1435                    .filter(project_collaborator::Column::ProjectId.is_in(project_ids))
1436                    .stream(&*tx)
1437                    .await?;
1438                while let Some(collaborator) = collaborators.next().await {
1439                    let collaborator = collaborator?;
1440                    let left_project =
1441                        left_projects
1442                            .entry(collaborator.project_id)
1443                            .or_insert(LeftProject {
1444                                id: collaborator.project_id,
1445                                host_user_id: Default::default(),
1446                                connection_ids: Default::default(),
1447                                host_connection_id: Default::default(),
1448                            });
1449
1450                    let collaborator_connection_id = ConnectionId {
1451                        owner_id: collaborator.connection_server_id.0 as u32,
1452                        id: collaborator.connection_id as u32,
1453                    };
1454                    if collaborator_connection_id != connection {
1455                        left_project.connection_ids.push(collaborator_connection_id);
1456                    }
1457
1458                    if collaborator.is_host {
1459                        left_project.host_user_id = collaborator.user_id;
1460                        left_project.host_connection_id = collaborator_connection_id;
1461                    }
1462                }
1463                drop(collaborators);
1464
1465                // Leave projects.
1466                project_collaborator::Entity::delete_many()
1467                    .filter(
1468                        Condition::all()
1469                            .add(
1470                                project_collaborator::Column::ConnectionId.eq(connection.id as i32),
1471                            )
1472                            .add(
1473                                project_collaborator::Column::ConnectionServerId
1474                                    .eq(connection.owner_id as i32),
1475                            ),
1476                    )
1477                    .exec(&*tx)
1478                    .await?;
1479
1480                // Unshare projects.
1481                project::Entity::delete_many()
1482                    .filter(
1483                        Condition::all()
1484                            .add(project::Column::RoomId.eq(room_id))
1485                            .add(project::Column::HostConnectionId.eq(connection.id as i32))
1486                            .add(
1487                                project::Column::HostConnectionServerId
1488                                    .eq(connection.owner_id as i32),
1489                            ),
1490                    )
1491                    .exec(&*tx)
1492                    .await?;
1493
1494                let room = self.get_room(room_id, &tx).await?;
1495                if room.participants.is_empty() {
1496                    room::Entity::delete_by_id(room_id).exec(&*tx).await?;
1497                }
1498
1499                let left_room = LeftRoom {
1500                    room,
1501                    left_projects,
1502                    canceled_calls_to_user_ids,
1503                };
1504
1505                if left_room.room.participants.is_empty() {
1506                    self.rooms.remove(&room_id);
1507                }
1508
1509                Ok(Some((room_id, left_room)))
1510            } else {
1511                Ok(None)
1512            }
1513        })
1514        .await
1515    }
1516
1517    pub async fn update_room_participant_location(
1518        &self,
1519        room_id: RoomId,
1520        connection: ConnectionId,
1521        location: proto::ParticipantLocation,
1522    ) -> Result<RoomGuard<proto::Room>> {
1523        self.room_transaction(|tx| async {
1524            let tx = tx;
1525            let location_kind;
1526            let location_project_id;
1527            match location
1528                .variant
1529                .as_ref()
1530                .ok_or_else(|| anyhow!("invalid location"))?
1531            {
1532                proto::participant_location::Variant::SharedProject(project) => {
1533                    location_kind = 0;
1534                    location_project_id = Some(ProjectId::from_proto(project.id));
1535                }
1536                proto::participant_location::Variant::UnsharedProject(_) => {
1537                    location_kind = 1;
1538                    location_project_id = None;
1539                }
1540                proto::participant_location::Variant::External(_) => {
1541                    location_kind = 2;
1542                    location_project_id = None;
1543                }
1544            }
1545
1546            let result = room_participant::Entity::update_many()
1547                .filter(
1548                    Condition::all()
1549                        .add(room_participant::Column::RoomId.eq(room_id))
1550                        .add(
1551                            room_participant::Column::AnsweringConnectionId
1552                                .eq(connection.id as i32),
1553                        )
1554                        .add(
1555                            room_participant::Column::AnsweringConnectionServerId
1556                                .eq(connection.owner_id as i32),
1557                        ),
1558                )
1559                .set(room_participant::ActiveModel {
1560                    location_kind: ActiveValue::set(Some(location_kind)),
1561                    location_project_id: ActiveValue::set(location_project_id),
1562                    ..Default::default()
1563                })
1564                .exec(&*tx)
1565                .await?;
1566
1567            if result.rows_affected == 1 {
1568                let room = self.get_room(room_id, &tx).await?;
1569                Ok((room_id, room))
1570            } else {
1571                Err(anyhow!("could not update room participant location"))?
1572            }
1573        })
1574        .await
1575    }
1576
1577    pub async fn connection_lost(&self, connection: ConnectionId) -> Result<()> {
1578        self.transaction(|tx| async move {
1579            let participant = room_participant::Entity::find()
1580                .filter(
1581                    Condition::all()
1582                        .add(
1583                            room_participant::Column::AnsweringConnectionId
1584                                .eq(connection.id as i32),
1585                        )
1586                        .add(
1587                            room_participant::Column::AnsweringConnectionServerId
1588                                .eq(connection.owner_id as i32),
1589                        ),
1590                )
1591                .one(&*tx)
1592                .await?
1593                .ok_or_else(|| anyhow!("not a participant in any room"))?;
1594
1595            room_participant::Entity::update(room_participant::ActiveModel {
1596                answering_connection_lost: ActiveValue::set(true),
1597                ..participant.into_active_model()
1598            })
1599            .exec(&*tx)
1600            .await?;
1601
1602            Ok(())
1603        })
1604        .await
1605    }
1606
1607    fn build_incoming_call(
1608        room: &proto::Room,
1609        called_user_id: UserId,
1610    ) -> Option<proto::IncomingCall> {
1611        let pending_participant = room
1612            .pending_participants
1613            .iter()
1614            .find(|participant| participant.user_id == called_user_id.to_proto())?;
1615
1616        Some(proto::IncomingCall {
1617            room_id: room.id,
1618            calling_user_id: pending_participant.calling_user_id,
1619            participant_user_ids: room
1620                .participants
1621                .iter()
1622                .map(|participant| participant.user_id)
1623                .collect(),
1624            initial_project: room.participants.iter().find_map(|participant| {
1625                let initial_project_id = pending_participant.initial_project_id?;
1626                participant
1627                    .projects
1628                    .iter()
1629                    .find(|project| project.id == initial_project_id)
1630                    .cloned()
1631            }),
1632        })
1633    }
1634
1635    async fn get_room(&self, room_id: RoomId, tx: &DatabaseTransaction) -> Result<proto::Room> {
1636        let db_room = room::Entity::find_by_id(room_id)
1637            .one(tx)
1638            .await?
1639            .ok_or_else(|| anyhow!("could not find room"))?;
1640
1641        let mut db_participants = db_room
1642            .find_related(room_participant::Entity)
1643            .stream(tx)
1644            .await?;
1645        let mut participants = HashMap::default();
1646        let mut pending_participants = Vec::new();
1647        while let Some(db_participant) = db_participants.next().await {
1648            let db_participant = db_participant?;
1649            if let Some((answering_connection_id, answering_connection_server_id)) = db_participant
1650                .answering_connection_id
1651                .zip(db_participant.answering_connection_server_id)
1652            {
1653                let location = match (
1654                    db_participant.location_kind,
1655                    db_participant.location_project_id,
1656                ) {
1657                    (Some(0), Some(project_id)) => {
1658                        Some(proto::participant_location::Variant::SharedProject(
1659                            proto::participant_location::SharedProject {
1660                                id: project_id.to_proto(),
1661                            },
1662                        ))
1663                    }
1664                    (Some(1), _) => Some(proto::participant_location::Variant::UnsharedProject(
1665                        Default::default(),
1666                    )),
1667                    _ => Some(proto::participant_location::Variant::External(
1668                        Default::default(),
1669                    )),
1670                };
1671
1672                let answering_connection = ConnectionId {
1673                    owner_id: answering_connection_server_id.0 as u32,
1674                    id: answering_connection_id as u32,
1675                };
1676                participants.insert(
1677                    answering_connection,
1678                    proto::Participant {
1679                        user_id: db_participant.user_id.to_proto(),
1680                        peer_id: Some(answering_connection.into()),
1681                        projects: Default::default(),
1682                        location: Some(proto::ParticipantLocation { variant: location }),
1683                    },
1684                );
1685            } else {
1686                pending_participants.push(proto::PendingParticipant {
1687                    user_id: db_participant.user_id.to_proto(),
1688                    calling_user_id: db_participant.calling_user_id.to_proto(),
1689                    initial_project_id: db_participant.initial_project_id.map(|id| id.to_proto()),
1690                });
1691            }
1692        }
1693        drop(db_participants);
1694
1695        let mut db_projects = db_room
1696            .find_related(project::Entity)
1697            .find_with_related(worktree::Entity)
1698            .stream(tx)
1699            .await?;
1700
1701        while let Some(row) = db_projects.next().await {
1702            let (db_project, db_worktree) = row?;
1703            let host_connection = db_project.host_connection()?;
1704            if let Some(participant) = participants.get_mut(&host_connection) {
1705                let project = if let Some(project) = participant
1706                    .projects
1707                    .iter_mut()
1708                    .find(|project| project.id == db_project.id.to_proto())
1709                {
1710                    project
1711                } else {
1712                    participant.projects.push(proto::ParticipantProject {
1713                        id: db_project.id.to_proto(),
1714                        worktree_root_names: Default::default(),
1715                    });
1716                    participant.projects.last_mut().unwrap()
1717                };
1718
1719                if let Some(db_worktree) = db_worktree {
1720                    project.worktree_root_names.push(db_worktree.root_name);
1721                }
1722            }
1723        }
1724
1725        Ok(proto::Room {
1726            id: db_room.id.to_proto(),
1727            live_kit_room: db_room.live_kit_room,
1728            participants: participants.into_values().collect(),
1729            pending_participants,
1730        })
1731    }
1732
1733    // projects
1734
1735    pub async fn project_count_excluding_admins(&self) -> Result<usize> {
1736        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
1737        enum QueryAs {
1738            Count,
1739        }
1740
1741        self.transaction(|tx| async move {
1742            Ok(project::Entity::find()
1743                .select_only()
1744                .column_as(project::Column::Id.count(), QueryAs::Count)
1745                .inner_join(user::Entity)
1746                .filter(user::Column::Admin.eq(false))
1747                .into_values::<_, QueryAs>()
1748                .one(&*tx)
1749                .await?
1750                .unwrap_or(0i64) as usize)
1751        })
1752        .await
1753    }
1754
1755    pub async fn share_project(
1756        &self,
1757        room_id: RoomId,
1758        connection: ConnectionId,
1759        worktrees: &[proto::WorktreeMetadata],
1760    ) -> Result<RoomGuard<(ProjectId, proto::Room)>> {
1761        self.room_transaction(|tx| async move {
1762            let participant = room_participant::Entity::find()
1763                .filter(
1764                    Condition::all()
1765                        .add(
1766                            room_participant::Column::AnsweringConnectionId
1767                                .eq(connection.id as i32),
1768                        )
1769                        .add(
1770                            room_participant::Column::AnsweringConnectionServerId
1771                                .eq(connection.owner_id as i32),
1772                        ),
1773                )
1774                .one(&*tx)
1775                .await?
1776                .ok_or_else(|| anyhow!("could not find participant"))?;
1777            if participant.room_id != room_id {
1778                return Err(anyhow!("shared project on unexpected room"))?;
1779            }
1780
1781            let project = project::ActiveModel {
1782                room_id: ActiveValue::set(participant.room_id),
1783                host_user_id: ActiveValue::set(participant.user_id),
1784                host_connection_id: ActiveValue::set(Some(connection.id as i32)),
1785                host_connection_server_id: ActiveValue::set(Some(ServerId(
1786                    connection.owner_id as i32,
1787                ))),
1788                ..Default::default()
1789            }
1790            .insert(&*tx)
1791            .await?;
1792
1793            if !worktrees.is_empty() {
1794                worktree::Entity::insert_many(worktrees.iter().map(|worktree| {
1795                    worktree::ActiveModel {
1796                        id: ActiveValue::set(worktree.id as i64),
1797                        project_id: ActiveValue::set(project.id),
1798                        abs_path: ActiveValue::set(worktree.abs_path.clone()),
1799                        root_name: ActiveValue::set(worktree.root_name.clone()),
1800                        visible: ActiveValue::set(worktree.visible),
1801                        scan_id: ActiveValue::set(0),
1802                        is_complete: ActiveValue::set(false),
1803                    }
1804                }))
1805                .exec(&*tx)
1806                .await?;
1807            }
1808
1809            project_collaborator::ActiveModel {
1810                project_id: ActiveValue::set(project.id),
1811                connection_id: ActiveValue::set(connection.id as i32),
1812                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
1813                user_id: ActiveValue::set(participant.user_id),
1814                replica_id: ActiveValue::set(ReplicaId(0)),
1815                is_host: ActiveValue::set(true),
1816                ..Default::default()
1817            }
1818            .insert(&*tx)
1819            .await?;
1820
1821            let room = self.get_room(room_id, &tx).await?;
1822            Ok((room_id, (project.id, room)))
1823        })
1824        .await
1825    }
1826
1827    pub async fn unshare_project(
1828        &self,
1829        project_id: ProjectId,
1830        connection: ConnectionId,
1831    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
1832        self.room_transaction(|tx| async move {
1833            let guest_connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
1834
1835            let project = project::Entity::find_by_id(project_id)
1836                .one(&*tx)
1837                .await?
1838                .ok_or_else(|| anyhow!("project not found"))?;
1839            if project.host_connection()? == connection {
1840                let room_id = project.room_id;
1841                project::Entity::delete(project.into_active_model())
1842                    .exec(&*tx)
1843                    .await?;
1844                let room = self.get_room(room_id, &tx).await?;
1845                Ok((room_id, (room, guest_connection_ids)))
1846            } else {
1847                Err(anyhow!("cannot unshare a project hosted by another user"))?
1848            }
1849        })
1850        .await
1851    }
1852
1853    pub async fn update_project(
1854        &self,
1855        project_id: ProjectId,
1856        connection: ConnectionId,
1857        worktrees: &[proto::WorktreeMetadata],
1858    ) -> Result<RoomGuard<(proto::Room, Vec<ConnectionId>)>> {
1859        self.room_transaction(|tx| async move {
1860            let project = project::Entity::find_by_id(project_id)
1861                .filter(
1862                    Condition::all()
1863                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
1864                        .add(
1865                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
1866                        ),
1867                )
1868                .one(&*tx)
1869                .await?
1870                .ok_or_else(|| anyhow!("no such project"))?;
1871
1872            if !worktrees.is_empty() {
1873                worktree::Entity::insert_many(worktrees.iter().map(|worktree| {
1874                    worktree::ActiveModel {
1875                        id: ActiveValue::set(worktree.id as i64),
1876                        project_id: ActiveValue::set(project.id),
1877                        abs_path: ActiveValue::set(worktree.abs_path.clone()),
1878                        root_name: ActiveValue::set(worktree.root_name.clone()),
1879                        visible: ActiveValue::set(worktree.visible),
1880                        scan_id: ActiveValue::set(0),
1881                        is_complete: ActiveValue::set(false),
1882                    }
1883                }))
1884                .on_conflict(
1885                    OnConflict::columns([worktree::Column::ProjectId, worktree::Column::Id])
1886                        .update_column(worktree::Column::RootName)
1887                        .to_owned(),
1888                )
1889                .exec(&*tx)
1890                .await?;
1891            }
1892
1893            worktree::Entity::delete_many()
1894                .filter(
1895                    worktree::Column::ProjectId.eq(project.id).and(
1896                        worktree::Column::Id
1897                            .is_not_in(worktrees.iter().map(|worktree| worktree.id as i64)),
1898                    ),
1899                )
1900                .exec(&*tx)
1901                .await?;
1902
1903            let guest_connection_ids = self.project_guest_connection_ids(project.id, &tx).await?;
1904            let room = self.get_room(project.room_id, &tx).await?;
1905            Ok((project.room_id, (room, guest_connection_ids)))
1906        })
1907        .await
1908    }
1909
1910    pub async fn update_worktree(
1911        &self,
1912        update: &proto::UpdateWorktree,
1913        connection: ConnectionId,
1914    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
1915        self.room_transaction(|tx| async move {
1916            let project_id = ProjectId::from_proto(update.project_id);
1917            let worktree_id = update.worktree_id as i64;
1918
1919            // Ensure the update comes from the host.
1920            let project = project::Entity::find_by_id(project_id)
1921                .filter(
1922                    Condition::all()
1923                        .add(project::Column::HostConnectionId.eq(connection.id as i32))
1924                        .add(
1925                            project::Column::HostConnectionServerId.eq(connection.owner_id as i32),
1926                        ),
1927                )
1928                .one(&*tx)
1929                .await?
1930                .ok_or_else(|| anyhow!("no such project"))?;
1931            let room_id = project.room_id;
1932
1933            // Update metadata.
1934            worktree::Entity::update(worktree::ActiveModel {
1935                id: ActiveValue::set(worktree_id),
1936                project_id: ActiveValue::set(project_id),
1937                root_name: ActiveValue::set(update.root_name.clone()),
1938                scan_id: ActiveValue::set(update.scan_id as i64),
1939                is_complete: ActiveValue::set(update.is_last_update),
1940                abs_path: ActiveValue::set(update.abs_path.clone()),
1941                ..Default::default()
1942            })
1943            .exec(&*tx)
1944            .await?;
1945
1946            if !update.updated_entries.is_empty() {
1947                worktree_entry::Entity::insert_many(update.updated_entries.iter().map(|entry| {
1948                    let mtime = entry.mtime.clone().unwrap_or_default();
1949                    worktree_entry::ActiveModel {
1950                        project_id: ActiveValue::set(project_id),
1951                        worktree_id: ActiveValue::set(worktree_id),
1952                        id: ActiveValue::set(entry.id as i64),
1953                        is_dir: ActiveValue::set(entry.is_dir),
1954                        path: ActiveValue::set(entry.path.clone()),
1955                        inode: ActiveValue::set(entry.inode as i64),
1956                        mtime_seconds: ActiveValue::set(mtime.seconds as i64),
1957                        mtime_nanos: ActiveValue::set(mtime.nanos as i32),
1958                        is_symlink: ActiveValue::set(entry.is_symlink),
1959                        is_ignored: ActiveValue::set(entry.is_ignored),
1960                    }
1961                }))
1962                .on_conflict(
1963                    OnConflict::columns([
1964                        worktree_entry::Column::ProjectId,
1965                        worktree_entry::Column::WorktreeId,
1966                        worktree_entry::Column::Id,
1967                    ])
1968                    .update_columns([
1969                        worktree_entry::Column::IsDir,
1970                        worktree_entry::Column::Path,
1971                        worktree_entry::Column::Inode,
1972                        worktree_entry::Column::MtimeSeconds,
1973                        worktree_entry::Column::MtimeNanos,
1974                        worktree_entry::Column::IsSymlink,
1975                        worktree_entry::Column::IsIgnored,
1976                    ])
1977                    .to_owned(),
1978                )
1979                .exec(&*tx)
1980                .await?;
1981            }
1982
1983            if !update.removed_entries.is_empty() {
1984                worktree_entry::Entity::delete_many()
1985                    .filter(
1986                        worktree_entry::Column::ProjectId
1987                            .eq(project_id)
1988                            .and(worktree_entry::Column::WorktreeId.eq(worktree_id))
1989                            .and(
1990                                worktree_entry::Column::Id
1991                                    .is_in(update.removed_entries.iter().map(|id| *id as i64)),
1992                            ),
1993                    )
1994                    .exec(&*tx)
1995                    .await?;
1996            }
1997
1998            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
1999            Ok((room_id, connection_ids))
2000        })
2001        .await
2002    }
2003
2004    pub async fn update_diagnostic_summary(
2005        &self,
2006        update: &proto::UpdateDiagnosticSummary,
2007        connection: ConnectionId,
2008    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2009        self.room_transaction(|tx| async move {
2010            let project_id = ProjectId::from_proto(update.project_id);
2011            let worktree_id = update.worktree_id as i64;
2012            let summary = update
2013                .summary
2014                .as_ref()
2015                .ok_or_else(|| anyhow!("invalid summary"))?;
2016
2017            // Ensure the update comes from the host.
2018            let project = project::Entity::find_by_id(project_id)
2019                .one(&*tx)
2020                .await?
2021                .ok_or_else(|| anyhow!("no such project"))?;
2022            if project.host_connection()? != connection {
2023                return Err(anyhow!("can't update a project hosted by someone else"))?;
2024            }
2025
2026            // Update summary.
2027            worktree_diagnostic_summary::Entity::insert(worktree_diagnostic_summary::ActiveModel {
2028                project_id: ActiveValue::set(project_id),
2029                worktree_id: ActiveValue::set(worktree_id),
2030                path: ActiveValue::set(summary.path.clone()),
2031                language_server_id: ActiveValue::set(summary.language_server_id as i64),
2032                error_count: ActiveValue::set(summary.error_count as i32),
2033                warning_count: ActiveValue::set(summary.warning_count as i32),
2034                ..Default::default()
2035            })
2036            .on_conflict(
2037                OnConflict::columns([
2038                    worktree_diagnostic_summary::Column::ProjectId,
2039                    worktree_diagnostic_summary::Column::WorktreeId,
2040                    worktree_diagnostic_summary::Column::Path,
2041                ])
2042                .update_columns([
2043                    worktree_diagnostic_summary::Column::LanguageServerId,
2044                    worktree_diagnostic_summary::Column::ErrorCount,
2045                    worktree_diagnostic_summary::Column::WarningCount,
2046                ])
2047                .to_owned(),
2048            )
2049            .exec(&*tx)
2050            .await?;
2051
2052            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2053            Ok((project.room_id, connection_ids))
2054        })
2055        .await
2056    }
2057
2058    pub async fn start_language_server(
2059        &self,
2060        update: &proto::StartLanguageServer,
2061        connection: ConnectionId,
2062    ) -> Result<RoomGuard<Vec<ConnectionId>>> {
2063        self.room_transaction(|tx| async move {
2064            let project_id = ProjectId::from_proto(update.project_id);
2065            let server = update
2066                .server
2067                .as_ref()
2068                .ok_or_else(|| anyhow!("invalid language server"))?;
2069
2070            // Ensure the update comes from the host.
2071            let project = project::Entity::find_by_id(project_id)
2072                .one(&*tx)
2073                .await?
2074                .ok_or_else(|| anyhow!("no such project"))?;
2075            if project.host_connection()? != connection {
2076                return Err(anyhow!("can't update a project hosted by someone else"))?;
2077            }
2078
2079            // Add the newly-started language server.
2080            language_server::Entity::insert(language_server::ActiveModel {
2081                project_id: ActiveValue::set(project_id),
2082                id: ActiveValue::set(server.id as i64),
2083                name: ActiveValue::set(server.name.clone()),
2084                ..Default::default()
2085            })
2086            .on_conflict(
2087                OnConflict::columns([
2088                    language_server::Column::ProjectId,
2089                    language_server::Column::Id,
2090                ])
2091                .update_column(language_server::Column::Name)
2092                .to_owned(),
2093            )
2094            .exec(&*tx)
2095            .await?;
2096
2097            let connection_ids = self.project_guest_connection_ids(project_id, &tx).await?;
2098            Ok((project.room_id, connection_ids))
2099        })
2100        .await
2101    }
2102
2103    pub async fn join_project(
2104        &self,
2105        project_id: ProjectId,
2106        connection: ConnectionId,
2107    ) -> Result<RoomGuard<(Project, ReplicaId)>> {
2108        self.room_transaction(|tx| async move {
2109            let participant = room_participant::Entity::find()
2110                .filter(
2111                    Condition::all()
2112                        .add(
2113                            room_participant::Column::AnsweringConnectionId
2114                                .eq(connection.id as i32),
2115                        )
2116                        .add(
2117                            room_participant::Column::AnsweringConnectionServerId
2118                                .eq(connection.owner_id as i32),
2119                        ),
2120                )
2121                .one(&*tx)
2122                .await?
2123                .ok_or_else(|| anyhow!("must join a room first"))?;
2124
2125            let project = project::Entity::find_by_id(project_id)
2126                .one(&*tx)
2127                .await?
2128                .ok_or_else(|| anyhow!("no such project"))?;
2129            if project.room_id != participant.room_id {
2130                return Err(anyhow!("no such project"))?;
2131            }
2132
2133            let mut collaborators = project
2134                .find_related(project_collaborator::Entity)
2135                .all(&*tx)
2136                .await?;
2137            let replica_ids = collaborators
2138                .iter()
2139                .map(|c| c.replica_id)
2140                .collect::<HashSet<_>>();
2141            let mut replica_id = ReplicaId(1);
2142            while replica_ids.contains(&replica_id) {
2143                replica_id.0 += 1;
2144            }
2145            let new_collaborator = project_collaborator::ActiveModel {
2146                project_id: ActiveValue::set(project_id),
2147                connection_id: ActiveValue::set(connection.id as i32),
2148                connection_server_id: ActiveValue::set(ServerId(connection.owner_id as i32)),
2149                user_id: ActiveValue::set(participant.user_id),
2150                replica_id: ActiveValue::set(replica_id),
2151                is_host: ActiveValue::set(false),
2152                ..Default::default()
2153            }
2154            .insert(&*tx)
2155            .await?;
2156            collaborators.push(new_collaborator);
2157
2158            let db_worktrees = project.find_related(worktree::Entity).all(&*tx).await?;
2159            let mut worktrees = db_worktrees
2160                .into_iter()
2161                .map(|db_worktree| {
2162                    (
2163                        db_worktree.id as u64,
2164                        Worktree {
2165                            id: db_worktree.id as u64,
2166                            abs_path: db_worktree.abs_path,
2167                            root_name: db_worktree.root_name,
2168                            visible: db_worktree.visible,
2169                            entries: Default::default(),
2170                            diagnostic_summaries: Default::default(),
2171                            scan_id: db_worktree.scan_id as u64,
2172                            is_complete: db_worktree.is_complete,
2173                        },
2174                    )
2175                })
2176                .collect::<BTreeMap<_, _>>();
2177
2178            // Populate worktree entries.
2179            {
2180                let mut db_entries = worktree_entry::Entity::find()
2181                    .filter(worktree_entry::Column::ProjectId.eq(project_id))
2182                    .stream(&*tx)
2183                    .await?;
2184                while let Some(db_entry) = db_entries.next().await {
2185                    let db_entry = db_entry?;
2186                    if let Some(worktree) = worktrees.get_mut(&(db_entry.worktree_id as u64)) {
2187                        worktree.entries.push(proto::Entry {
2188                            id: db_entry.id as u64,
2189                            is_dir: db_entry.is_dir,
2190                            path: db_entry.path,
2191                            inode: db_entry.inode as u64,
2192                            mtime: Some(proto::Timestamp {
2193                                seconds: db_entry.mtime_seconds as u64,
2194                                nanos: db_entry.mtime_nanos as u32,
2195                            }),
2196                            is_symlink: db_entry.is_symlink,
2197                            is_ignored: db_entry.is_ignored,
2198                        });
2199                    }
2200                }
2201            }
2202
2203            // Populate worktree diagnostic summaries.
2204            {
2205                let mut db_summaries = worktree_diagnostic_summary::Entity::find()
2206                    .filter(worktree_diagnostic_summary::Column::ProjectId.eq(project_id))
2207                    .stream(&*tx)
2208                    .await?;
2209                while let Some(db_summary) = db_summaries.next().await {
2210                    let db_summary = db_summary?;
2211                    if let Some(worktree) = worktrees.get_mut(&(db_summary.worktree_id as u64)) {
2212                        worktree
2213                            .diagnostic_summaries
2214                            .push(proto::DiagnosticSummary {
2215                                path: db_summary.path,
2216                                language_server_id: db_summary.language_server_id as u64,
2217                                error_count: db_summary.error_count as u32,
2218                                warning_count: db_summary.warning_count as u32,
2219                            });
2220                    }
2221                }
2222            }
2223
2224            // Populate language servers.
2225            let language_servers = project
2226                .find_related(language_server::Entity)
2227                .all(&*tx)
2228                .await?;
2229
2230            let room_id = project.room_id;
2231            let project = Project {
2232                collaborators: collaborators
2233                    .into_iter()
2234                    .map(|collaborator| ProjectCollaborator {
2235                        connection_id: ConnectionId {
2236                            owner_id: collaborator.connection_server_id.0 as u32,
2237                            id: collaborator.connection_id as u32,
2238                        },
2239                        user_id: collaborator.user_id,
2240                        replica_id: collaborator.replica_id,
2241                        is_host: collaborator.is_host,
2242                    })
2243                    .collect(),
2244                worktrees,
2245                language_servers: language_servers
2246                    .into_iter()
2247                    .map(|language_server| proto::LanguageServer {
2248                        id: language_server.id as u64,
2249                        name: language_server.name,
2250                    })
2251                    .collect(),
2252            };
2253            Ok((room_id, (project, replica_id as ReplicaId)))
2254        })
2255        .await
2256    }
2257
2258    pub async fn leave_project(
2259        &self,
2260        project_id: ProjectId,
2261        connection: ConnectionId,
2262    ) -> Result<RoomGuard<LeftProject>> {
2263        self.room_transaction(|tx| async move {
2264            let result = project_collaborator::Entity::delete_many()
2265                .filter(
2266                    Condition::all()
2267                        .add(project_collaborator::Column::ProjectId.eq(project_id))
2268                        .add(project_collaborator::Column::ConnectionId.eq(connection.id as i32))
2269                        .add(
2270                            project_collaborator::Column::ConnectionServerId
2271                                .eq(connection.owner_id as i32),
2272                        ),
2273                )
2274                .exec(&*tx)
2275                .await?;
2276            if result.rows_affected == 0 {
2277                Err(anyhow!("not a collaborator on this project"))?;
2278            }
2279
2280            let project = project::Entity::find_by_id(project_id)
2281                .one(&*tx)
2282                .await?
2283                .ok_or_else(|| anyhow!("no such project"))?;
2284            let collaborators = project
2285                .find_related(project_collaborator::Entity)
2286                .all(&*tx)
2287                .await?;
2288            let connection_ids = collaborators
2289                .into_iter()
2290                .map(|collaborator| ConnectionId {
2291                    owner_id: collaborator.connection_server_id.0 as u32,
2292                    id: collaborator.connection_id as u32,
2293                })
2294                .collect();
2295
2296            let left_project = LeftProject {
2297                id: project_id,
2298                host_user_id: project.host_user_id,
2299                host_connection_id: project.host_connection()?,
2300                connection_ids,
2301            };
2302            Ok((project.room_id, left_project))
2303        })
2304        .await
2305    }
2306
2307    pub async fn project_collaborators(
2308        &self,
2309        project_id: ProjectId,
2310        connection_id: ConnectionId,
2311    ) -> Result<RoomGuard<Vec<ProjectCollaborator>>> {
2312        self.room_transaction(|tx| async move {
2313            let project = project::Entity::find_by_id(project_id)
2314                .one(&*tx)
2315                .await?
2316                .ok_or_else(|| anyhow!("no such project"))?;
2317            let collaborators = project_collaborator::Entity::find()
2318                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2319                .all(&*tx)
2320                .await?
2321                .into_iter()
2322                .map(|collaborator| ProjectCollaborator {
2323                    connection_id: ConnectionId {
2324                        owner_id: collaborator.connection_server_id.0 as u32,
2325                        id: collaborator.connection_id as u32,
2326                    },
2327                    user_id: collaborator.user_id,
2328                    replica_id: collaborator.replica_id,
2329                    is_host: collaborator.is_host,
2330                })
2331                .collect::<Vec<_>>();
2332
2333            if collaborators
2334                .iter()
2335                .any(|collaborator| collaborator.connection_id == connection_id)
2336            {
2337                Ok((project.room_id, collaborators))
2338            } else {
2339                Err(anyhow!("no such project"))?
2340            }
2341        })
2342        .await
2343    }
2344
2345    pub async fn project_connection_ids(
2346        &self,
2347        project_id: ProjectId,
2348        connection_id: ConnectionId,
2349    ) -> Result<RoomGuard<HashSet<ConnectionId>>> {
2350        self.room_transaction(|tx| async move {
2351            let project = project::Entity::find_by_id(project_id)
2352                .one(&*tx)
2353                .await?
2354                .ok_or_else(|| anyhow!("no such project"))?;
2355            let mut participants = project_collaborator::Entity::find()
2356                .filter(project_collaborator::Column::ProjectId.eq(project_id))
2357                .stream(&*tx)
2358                .await?;
2359
2360            let mut connection_ids = HashSet::default();
2361            while let Some(participant) = participants.next().await {
2362                let participant = participant?;
2363                connection_ids.insert(ConnectionId {
2364                    owner_id: participant.connection_server_id.0 as u32,
2365                    id: participant.connection_id as u32,
2366                });
2367            }
2368
2369            if connection_ids.contains(&connection_id) {
2370                Ok((project.room_id, connection_ids))
2371            } else {
2372                Err(anyhow!("no such project"))?
2373            }
2374        })
2375        .await
2376    }
2377
2378    async fn project_guest_connection_ids(
2379        &self,
2380        project_id: ProjectId,
2381        tx: &DatabaseTransaction,
2382    ) -> Result<Vec<ConnectionId>> {
2383        let mut participants = project_collaborator::Entity::find()
2384            .filter(
2385                project_collaborator::Column::ProjectId
2386                    .eq(project_id)
2387                    .and(project_collaborator::Column::IsHost.eq(false)),
2388            )
2389            .stream(tx)
2390            .await?;
2391
2392        let mut guest_connection_ids = Vec::new();
2393        while let Some(participant) = participants.next().await {
2394            let participant = participant?;
2395            guest_connection_ids.push(ConnectionId {
2396                owner_id: participant.connection_server_id.0 as u32,
2397                id: participant.connection_id as u32,
2398            });
2399        }
2400        Ok(guest_connection_ids)
2401    }
2402
2403    // access tokens
2404
2405    pub async fn create_access_token_hash(
2406        &self,
2407        user_id: UserId,
2408        access_token_hash: &str,
2409        max_access_token_count: usize,
2410    ) -> Result<()> {
2411        self.transaction(|tx| async {
2412            let tx = tx;
2413
2414            access_token::ActiveModel {
2415                user_id: ActiveValue::set(user_id),
2416                hash: ActiveValue::set(access_token_hash.into()),
2417                ..Default::default()
2418            }
2419            .insert(&*tx)
2420            .await?;
2421
2422            access_token::Entity::delete_many()
2423                .filter(
2424                    access_token::Column::Id.in_subquery(
2425                        Query::select()
2426                            .column(access_token::Column::Id)
2427                            .from(access_token::Entity)
2428                            .and_where(access_token::Column::UserId.eq(user_id))
2429                            .order_by(access_token::Column::Id, sea_orm::Order::Desc)
2430                            .limit(10000)
2431                            .offset(max_access_token_count as u64)
2432                            .to_owned(),
2433                    ),
2434                )
2435                .exec(&*tx)
2436                .await?;
2437            Ok(())
2438        })
2439        .await
2440    }
2441
2442    pub async fn get_access_token_hashes(&self, user_id: UserId) -> Result<Vec<String>> {
2443        #[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
2444        enum QueryAs {
2445            Hash,
2446        }
2447
2448        self.transaction(|tx| async move {
2449            Ok(access_token::Entity::find()
2450                .select_only()
2451                .column(access_token::Column::Hash)
2452                .filter(access_token::Column::UserId.eq(user_id))
2453                .order_by_desc(access_token::Column::Id)
2454                .into_values::<_, QueryAs>()
2455                .all(&*tx)
2456                .await?)
2457        })
2458        .await
2459    }
2460
2461    async fn transaction<F, Fut, T>(&self, f: F) -> Result<T>
2462    where
2463        F: Send + Fn(TransactionHandle) -> Fut,
2464        Fut: Send + Future<Output = Result<T>>,
2465    {
2466        let body = async {
2467            loop {
2468                let (tx, result) = self.with_transaction(&f).await?;
2469                match result {
2470                    Ok(result) => {
2471                        match tx.commit().await.map_err(Into::into) {
2472                            Ok(()) => return Ok(result),
2473                            Err(error) => {
2474                                if is_serialization_error(&error) {
2475                                    // Retry (don't break the loop)
2476                                } else {
2477                                    return Err(error);
2478                                }
2479                            }
2480                        }
2481                    }
2482                    Err(error) => {
2483                        tx.rollback().await?;
2484                        if is_serialization_error(&error) {
2485                            // Retry (don't break the loop)
2486                        } else {
2487                            return Err(error);
2488                        }
2489                    }
2490                }
2491            }
2492        };
2493
2494        self.run(body).await
2495    }
2496
2497    async fn optional_room_transaction<F, Fut, T>(&self, f: F) -> Result<Option<RoomGuard<T>>>
2498    where
2499        F: Send + Fn(TransactionHandle) -> Fut,
2500        Fut: Send + Future<Output = Result<Option<(RoomId, T)>>>,
2501    {
2502        let body = async {
2503            loop {
2504                let (tx, result) = self.with_transaction(&f).await?;
2505                match result {
2506                    Ok(Some((room_id, data))) => {
2507                        let lock = self.rooms.entry(room_id).or_default().clone();
2508                        let _guard = lock.lock_owned().await;
2509                        match tx.commit().await.map_err(Into::into) {
2510                            Ok(()) => {
2511                                return Ok(Some(RoomGuard {
2512                                    data,
2513                                    _guard,
2514                                    _not_send: PhantomData,
2515                                }));
2516                            }
2517                            Err(error) => {
2518                                if is_serialization_error(&error) {
2519                                    // Retry (don't break the loop)
2520                                } else {
2521                                    return Err(error);
2522                                }
2523                            }
2524                        }
2525                    }
2526                    Ok(None) => {
2527                        match tx.commit().await.map_err(Into::into) {
2528                            Ok(()) => return Ok(None),
2529                            Err(error) => {
2530                                if is_serialization_error(&error) {
2531                                    // Retry (don't break the loop)
2532                                } else {
2533                                    return Err(error);
2534                                }
2535                            }
2536                        }
2537                    }
2538                    Err(error) => {
2539                        tx.rollback().await?;
2540                        if is_serialization_error(&error) {
2541                            // Retry (don't break the loop)
2542                        } else {
2543                            return Err(error);
2544                        }
2545                    }
2546                }
2547            }
2548        };
2549
2550        self.run(body).await
2551    }
2552
2553    async fn room_transaction<F, Fut, T>(&self, f: F) -> Result<RoomGuard<T>>
2554    where
2555        F: Send + Fn(TransactionHandle) -> Fut,
2556        Fut: Send + Future<Output = Result<(RoomId, T)>>,
2557    {
2558        let data = self
2559            .optional_room_transaction(move |tx| {
2560                let future = f(tx);
2561                async {
2562                    let data = future.await?;
2563                    Ok(Some(data))
2564                }
2565            })
2566            .await?;
2567        Ok(data.unwrap())
2568    }
2569
2570    async fn with_transaction<F, Fut, T>(&self, f: &F) -> Result<(DatabaseTransaction, Result<T>)>
2571    where
2572        F: Send + Fn(TransactionHandle) -> Fut,
2573        Fut: Send + Future<Output = Result<T>>,
2574    {
2575        let tx = self
2576            .pool
2577            .begin_with_config(Some(IsolationLevel::Serializable), None)
2578            .await?;
2579
2580        let mut tx = Arc::new(Some(tx));
2581        let result = f(TransactionHandle(tx.clone())).await;
2582        let Some(tx) = Arc::get_mut(&mut tx).and_then(|tx| tx.take()) else {
2583            return Err(anyhow!("couldn't complete transaction because it's still in use"))?;
2584        };
2585
2586        Ok((tx, result))
2587    }
2588
2589    async fn run<F, T>(&self, future: F) -> T
2590    where
2591        F: Future<Output = T>,
2592    {
2593        #[cfg(test)]
2594        {
2595            if let Some(background) = self.background.as_ref() {
2596                background.simulate_random_delay().await;
2597            }
2598
2599            self.runtime.as_ref().unwrap().block_on(future)
2600        }
2601
2602        #[cfg(not(test))]
2603        {
2604            future.await
2605        }
2606    }
2607}
2608
2609fn is_serialization_error(error: &Error) -> bool {
2610    const SERIALIZATION_FAILURE_CODE: &'static str = "40001";
2611    match error {
2612        Error::Database(
2613            DbErr::Exec(sea_orm::RuntimeErr::SqlxError(error))
2614            | DbErr::Query(sea_orm::RuntimeErr::SqlxError(error)),
2615        ) if error
2616            .as_database_error()
2617            .and_then(|error| error.code())
2618            .as_deref()
2619            == Some(SERIALIZATION_FAILURE_CODE) =>
2620        {
2621            true
2622        }
2623        _ => false,
2624    }
2625}
2626
2627struct TransactionHandle(Arc<Option<DatabaseTransaction>>);
2628
2629impl Deref for TransactionHandle {
2630    type Target = DatabaseTransaction;
2631
2632    fn deref(&self) -> &Self::Target {
2633        self.0.as_ref().as_ref().unwrap()
2634    }
2635}
2636
2637pub struct RoomGuard<T> {
2638    data: T,
2639    _guard: OwnedMutexGuard<()>,
2640    _not_send: PhantomData<Rc<()>>,
2641}
2642
2643impl<T> Deref for RoomGuard<T> {
2644    type Target = T;
2645
2646    fn deref(&self) -> &T {
2647        &self.data
2648    }
2649}
2650
2651impl<T> DerefMut for RoomGuard<T> {
2652    fn deref_mut(&mut self) -> &mut T {
2653        &mut self.data
2654    }
2655}
2656
2657#[derive(Debug, Serialize, Deserialize)]
2658pub struct NewUserParams {
2659    pub github_login: String,
2660    pub github_user_id: i32,
2661    pub invite_count: i32,
2662}
2663
2664#[derive(Debug)]
2665pub struct NewUserResult {
2666    pub user_id: UserId,
2667    pub metrics_id: String,
2668    pub inviting_user_id: Option<UserId>,
2669    pub signup_device_id: Option<String>,
2670}
2671
2672fn random_invite_code() -> String {
2673    nanoid::nanoid!(16)
2674}
2675
2676fn random_email_confirmation_code() -> String {
2677    nanoid::nanoid!(64)
2678}
2679
2680macro_rules! id_type {
2681    ($name:ident) => {
2682        #[derive(
2683            Clone,
2684            Copy,
2685            Debug,
2686            Default,
2687            PartialEq,
2688            Eq,
2689            PartialOrd,
2690            Ord,
2691            Hash,
2692            Serialize,
2693            Deserialize,
2694        )]
2695        #[serde(transparent)]
2696        pub struct $name(pub i32);
2697
2698        impl $name {
2699            #[allow(unused)]
2700            pub const MAX: Self = Self(i32::MAX);
2701
2702            #[allow(unused)]
2703            pub fn from_proto(value: u64) -> Self {
2704                Self(value as i32)
2705            }
2706
2707            #[allow(unused)]
2708            pub fn to_proto(self) -> u64 {
2709                self.0 as u64
2710            }
2711        }
2712
2713        impl std::fmt::Display for $name {
2714            fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
2715                self.0.fmt(f)
2716            }
2717        }
2718
2719        impl From<$name> for sea_query::Value {
2720            fn from(value: $name) -> Self {
2721                sea_query::Value::Int(Some(value.0))
2722            }
2723        }
2724
2725        impl sea_orm::TryGetable for $name {
2726            fn try_get(
2727                res: &sea_orm::QueryResult,
2728                pre: &str,
2729                col: &str,
2730            ) -> Result<Self, sea_orm::TryGetError> {
2731                Ok(Self(i32::try_get(res, pre, col)?))
2732            }
2733        }
2734
2735        impl sea_query::ValueType for $name {
2736            fn try_from(v: Value) -> Result<Self, sea_query::ValueTypeErr> {
2737                match v {
2738                    Value::TinyInt(Some(int)) => {
2739                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2740                    }
2741                    Value::SmallInt(Some(int)) => {
2742                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2743                    }
2744                    Value::Int(Some(int)) => {
2745                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2746                    }
2747                    Value::BigInt(Some(int)) => {
2748                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2749                    }
2750                    Value::TinyUnsigned(Some(int)) => {
2751                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2752                    }
2753                    Value::SmallUnsigned(Some(int)) => {
2754                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2755                    }
2756                    Value::Unsigned(Some(int)) => {
2757                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2758                    }
2759                    Value::BigUnsigned(Some(int)) => {
2760                        Ok(Self(int.try_into().map_err(|_| sea_query::ValueTypeErr)?))
2761                    }
2762                    _ => Err(sea_query::ValueTypeErr),
2763                }
2764            }
2765
2766            fn type_name() -> String {
2767                stringify!($name).into()
2768            }
2769
2770            fn array_type() -> sea_query::ArrayType {
2771                sea_query::ArrayType::Int
2772            }
2773
2774            fn column_type() -> sea_query::ColumnType {
2775                sea_query::ColumnType::Integer(None)
2776            }
2777        }
2778
2779        impl sea_orm::TryFromU64 for $name {
2780            fn try_from_u64(n: u64) -> Result<Self, DbErr> {
2781                Ok(Self(n.try_into().map_err(|_| {
2782                    DbErr::ConvertFromU64(concat!(
2783                        "error converting ",
2784                        stringify!($name),
2785                        " to u64"
2786                    ))
2787                })?))
2788            }
2789        }
2790
2791        impl sea_query::Nullable for $name {
2792            fn null() -> Value {
2793                Value::Int(None)
2794            }
2795        }
2796    };
2797}
2798
2799id_type!(AccessTokenId);
2800id_type!(ContactId);
2801id_type!(RoomId);
2802id_type!(RoomParticipantId);
2803id_type!(ProjectId);
2804id_type!(ProjectCollaboratorId);
2805id_type!(ReplicaId);
2806id_type!(ServerId);
2807id_type!(SignupId);
2808id_type!(UserId);
2809
2810pub struct RejoinedRoom {
2811    pub room: proto::Room,
2812    pub rejoined_projects: Vec<RejoinedProject>,
2813    pub reshared_projects: Vec<ResharedProject>,
2814}
2815
2816pub struct ResharedProject {
2817    pub id: ProjectId,
2818    pub old_connection_id: ConnectionId,
2819    pub collaborators: Vec<ProjectCollaborator>,
2820}
2821
2822pub struct RejoinedProject {
2823    pub id: ProjectId,
2824    pub old_connection_id: ConnectionId,
2825    pub collaborators: Vec<ProjectCollaborator>,
2826    pub worktrees: Vec<RejoinedWorktree>,
2827    pub language_servers: Vec<proto::LanguageServer>,
2828}
2829
2830pub struct RejoinedWorktree {
2831    pub id: u64,
2832    pub abs_path: String,
2833    pub root_name: String,
2834    pub visible: bool,
2835    pub updated_entries: Vec<proto::Entry>,
2836    pub removed_entries: Vec<u64>,
2837    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
2838    pub scan_id: u64,
2839    pub is_complete: bool,
2840}
2841
2842pub struct LeftRoom {
2843    pub room: proto::Room,
2844    pub left_projects: HashMap<ProjectId, LeftProject>,
2845    pub canceled_calls_to_user_ids: Vec<UserId>,
2846}
2847
2848pub struct RefreshedRoom {
2849    pub room: proto::Room,
2850    pub stale_participant_user_ids: Vec<UserId>,
2851    pub canceled_calls_to_user_ids: Vec<UserId>,
2852}
2853
2854pub struct Project {
2855    pub collaborators: Vec<ProjectCollaborator>,
2856    pub worktrees: BTreeMap<u64, Worktree>,
2857    pub language_servers: Vec<proto::LanguageServer>,
2858}
2859
2860pub struct ProjectCollaborator {
2861    pub connection_id: ConnectionId,
2862    pub user_id: UserId,
2863    pub replica_id: ReplicaId,
2864    pub is_host: bool,
2865}
2866
2867impl ProjectCollaborator {
2868    pub fn to_proto(&self) -> proto::Collaborator {
2869        proto::Collaborator {
2870            peer_id: Some(self.connection_id.into()),
2871            replica_id: self.replica_id.0 as u32,
2872            user_id: self.user_id.to_proto(),
2873        }
2874    }
2875}
2876
2877pub struct LeftProject {
2878    pub id: ProjectId,
2879    pub host_user_id: UserId,
2880    pub host_connection_id: ConnectionId,
2881    pub connection_ids: Vec<ConnectionId>,
2882}
2883
2884pub struct Worktree {
2885    pub id: u64,
2886    pub abs_path: String,
2887    pub root_name: String,
2888    pub visible: bool,
2889    pub entries: Vec<proto::Entry>,
2890    pub diagnostic_summaries: Vec<proto::DiagnosticSummary>,
2891    pub scan_id: u64,
2892    pub is_complete: bool,
2893}
2894
2895#[cfg(test)]
2896pub use test::*;
2897
2898#[cfg(test)]
2899mod test {
2900    use super::*;
2901    use gpui::executor::Background;
2902    use lazy_static::lazy_static;
2903    use parking_lot::Mutex;
2904    use rand::prelude::*;
2905    use sea_orm::ConnectionTrait;
2906    use sqlx::migrate::MigrateDatabase;
2907    use std::sync::Arc;
2908
2909    pub struct TestDb {
2910        pub db: Option<Arc<Database>>,
2911        pub connection: Option<sqlx::AnyConnection>,
2912    }
2913
2914    impl TestDb {
2915        pub fn sqlite(background: Arc<Background>) -> Self {
2916            let url = format!("sqlite::memory:");
2917            let runtime = tokio::runtime::Builder::new_current_thread()
2918                .enable_io()
2919                .enable_time()
2920                .build()
2921                .unwrap();
2922
2923            let mut db = runtime.block_on(async {
2924                let mut options = ConnectOptions::new(url);
2925                options.max_connections(5);
2926                let db = Database::new(options).await.unwrap();
2927                let sql = include_str!(concat!(
2928                    env!("CARGO_MANIFEST_DIR"),
2929                    "/migrations.sqlite/20221109000000_test_schema.sql"
2930                ));
2931                db.pool
2932                    .execute(sea_orm::Statement::from_string(
2933                        db.pool.get_database_backend(),
2934                        sql.into(),
2935                    ))
2936                    .await
2937                    .unwrap();
2938                db
2939            });
2940
2941            db.background = Some(background);
2942            db.runtime = Some(runtime);
2943
2944            Self {
2945                db: Some(Arc::new(db)),
2946                connection: None,
2947            }
2948        }
2949
2950        pub fn postgres(background: Arc<Background>) -> Self {
2951            lazy_static! {
2952                static ref LOCK: Mutex<()> = Mutex::new(());
2953            }
2954
2955            let _guard = LOCK.lock();
2956            let mut rng = StdRng::from_entropy();
2957            let url = format!(
2958                "postgres://postgres@localhost/zed-test-{}",
2959                rng.gen::<u128>()
2960            );
2961            let runtime = tokio::runtime::Builder::new_current_thread()
2962                .enable_io()
2963                .enable_time()
2964                .build()
2965                .unwrap();
2966
2967            let mut db = runtime.block_on(async {
2968                sqlx::Postgres::create_database(&url)
2969                    .await
2970                    .expect("failed to create test db");
2971                let mut options = ConnectOptions::new(url);
2972                options
2973                    .max_connections(5)
2974                    .idle_timeout(Duration::from_secs(0));
2975                let db = Database::new(options).await.unwrap();
2976                let migrations_path = concat!(env!("CARGO_MANIFEST_DIR"), "/migrations");
2977                db.migrate(Path::new(migrations_path), false).await.unwrap();
2978                db
2979            });
2980
2981            db.background = Some(background);
2982            db.runtime = Some(runtime);
2983
2984            Self {
2985                db: Some(Arc::new(db)),
2986                connection: None,
2987            }
2988        }
2989
2990        pub fn db(&self) -> &Arc<Database> {
2991            self.db.as_ref().unwrap()
2992        }
2993    }
2994
2995    impl Drop for TestDb {
2996        fn drop(&mut self) {
2997            let db = self.db.take().unwrap();
2998            if let sea_orm::DatabaseBackend::Postgres = db.pool.get_database_backend() {
2999                db.runtime.as_ref().unwrap().block_on(async {
3000                    use util::ResultExt;
3001                    let query = "
3002                        SELECT pg_terminate_backend(pg_stat_activity.pid)
3003                        FROM pg_stat_activity
3004                        WHERE
3005                            pg_stat_activity.datname = current_database() AND
3006                            pid <> pg_backend_pid();
3007                    ";
3008                    db.pool
3009                        .execute(sea_orm::Statement::from_string(
3010                            db.pool.get_database_backend(),
3011                            query.into(),
3012                        ))
3013                        .await
3014                        .log_err();
3015                    sqlx::Postgres::drop_database(db.options.get_url())
3016                        .await
3017                        .log_err();
3018                })
3019            }
3020        }
3021    }
3022}